16492642664 has 32 divisors (see below), whose sum is σ = 32001453000. Its totient is φ = 7959124992.

The previous prime is 16492642643. The next prime is 16492642679. The reversal of 16492642664 is 46624629461.

It can be written as a sum of positive squares in 4 ways, for example, as 10888922500 + 5603720164 = 104350^2 + 74858^2 .

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, 733412 + ... + 755564.

Almost surely, 2^16492642664 is an apocalyptic number.

It is an amenable number.

16492642664 is a deficient number, since it is larger than the sum of its proper divisors (15508810336).

16492642664 is a wasteful number, since it uses less digits than its factorization.

16492642664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25397 (or 25393 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 50.

The spelling of 16492642664 in words is "sixteen billion, four hundred ninety-two million, six hundred forty-two thousand, six hundred sixty-four".