15530849280 has 704 divisors, whose sum is σ = 59621740800. Its totient is φ = 3869835264.

The previous prime is 15530849251. The next prime is 15530849363. The reversal of 15530849280 is 8294803551.

15530849280 is a `hidden beast` number, since 1 + 55 + 30 + 8 + 492 + 80 = 666.

15530849280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 212751324 + ... + 212751396.

Almost surely, 2^15530849280 is an apocalyptic number.

15530849280 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 15530849280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29810870400).

15530849280 is an abundant number, since it is smaller than the sum of its proper divisors (44090891520).

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

15530849280 is an frugal number, since it uses more digits than its factorization.

15530849280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 15530849280 in words is "fifteen billion, five hundred thirty million, eight hundred forty-nine thousand, two hundred eighty".