16507887716 has 24 divisors (see below), whose sum is σ = 29322289920. Its totient is φ = 8130575232.

The previous prime is 16507887701. The next prime is 16507887719. The reversal of 16507887716 is 61778870561.

It is not an unprimeable number, because it can be changed into a prime (16507887719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76505 + ... + 197151.

It is an arithmetic number, because the mean of its divisors is an integer number (1221762080).

Almost surely, 2^16507887716 is an apocalyptic number.

It is an amenable number.

16507887716 is a deficient number, since it is larger than the sum of its proper divisors (12814402204).

16507887716 is a wasteful number, since it uses less digits than its factorization.

16507887716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121163 (or 121161 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 56.

The spelling of 16507887716 in words is "sixteen billion, five hundred seven million, eight hundred eighty-seven thousand, seven hundred sixteen".