15534364680 has 160 divisors (see below), whose sum is σ = 54483105600. Its totient is φ = 3962369664.

The previous prime is 15534364673. The next prime is 15534364687. The reversal of 15534364680 is 8646343551.

15534364680 is a `hidden beast` number, since 1 + 5 + 534 + 36 + 4 + 6 + 80 = 666.

15534364680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (15534364673) and next prime (15534364687).

It is a super-2 number, since 2×15534364680² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (15534364687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 29710 + ... + 178749.

It is an arithmetic number, because the mean of its divisors is an integer number (340519410).

Almost surely, 2^15534364680 is an apocalyptic number.

15534364680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15534364680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27241552800).

15534364680 is an abundant number, since it is smaller than the sum of its proper divisors (38948740920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15534364680 is a wasteful number, since it uses less digits than its factorization.

15534364680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208505 (or 208492 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 15534364680 in words is "fifteen billion, five hundred thirty-four million, three hundred sixty-four thousand, six hundred eighty".