15495995680 has 288 divisors, whose sum is σ = 42873667200. Its totient is φ = 5273579520.

The previous prime is 15495995677. The next prime is 15495995687. The reversal of 15495995680 is 8659959451.

It is a super-2 number, since 2×15495995680² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15495995687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37887316 + ... + 37887724.

It is an arithmetic number, because the mean of its divisors is an integer number (148866900).

Almost surely, 2^15495995680 is an apocalyptic number.

15495995680 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 15495995680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21436833600).

15495995680 is an abundant number, since it is smaller than the sum of its proper divisors (27377671520).

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

15495995680 is a wasteful number, since it uses less digits than its factorization.

15495995680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 17496000, while the sum is 61.

The spelling of 15495995680 in words is "fifteen billion, four hundred ninety-five million, nine hundred ninety-five thousand, six hundred eighty".