15747830664 has 32 divisors (see below), whose sum is σ = 39382705440. Its totient is φ = 5247526400.

The previous prime is 15747830621. The next prime is 15747830687. The reversal of 15747830664 is 46603874751.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34902 + ... + 180869.

It is an arithmetic number, because the mean of its divisors is an integer number (1230709545).

Almost surely, 2^15747830664 is an apocalyptic number.

It is an amenable number.

15747830664 is an abundant number, since it is smaller than the sum of its proper divisors (23634874776).

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

15747830664 is a wasteful number, since it uses less digits than its factorization.

15747830664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218821 (or 218817 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 15747830664 in words is "fifteen billion, seven hundred forty-seven million, eight hundred thirty thousand, six hundred sixty-four".