16507651516 has 48 divisors (see below), whose sum is σ = 31301222400. Its totient is φ = 7592574528.

The previous prime is 16507651507. The next prime is 16507651547. The reversal of 16507651516 is 61515670561.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435450 + ... + 471838.

It is an arithmetic number, because the mean of its divisors is an integer number (652108800).

Almost surely, 2^16507651516 is an apocalyptic number.

It is an amenable number.

16507651516 is a deficient number, since it is larger than the sum of its proper divisors (14793570884).

16507651516 is a wasteful number, since it uses less digits than its factorization.

16507651516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36586 (or 36584 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 43.

The spelling of 16507651516 in words is "sixteen billion, five hundred seven million, six hundred fifty-one thousand, five hundred sixteen".