15500408652 has 72 divisors (see below), whose sum is σ = 39440524032. Its totient is φ = 5132736000.

The previous prime is 15500408641. The next prime is 15500408659. The reversal of 15500408652 is 25680400551.

15500408652 is a `hidden beast` number, since 1 + 550 + 0 + 40 + 8 + 65 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (15500408659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8257138 + ... + 8259014.

It is an arithmetic number, because the mean of its divisors is an integer number (547785056).

Almost surely, 2^15500408652 is an apocalyptic number.

15500408652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15500408652 is an abundant number, since it is smaller than the sum of its proper divisors (23940115380).

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

15500408652 is a wasteful number, since it uses less digits than its factorization.

15500408652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279 (or 3274 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 15500408652 in words is "fifteen billion, five hundred million, four hundred eight thousand, six hundred fifty-two".