16605656116 has 24 divisors (see below), whose sum is σ = 33236873600. Its totient is φ = 7111232352.

The previous prime is 16605656113. The next prime is 16605656147. The reversal of 16605656116 is 61165650661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16605656113) 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, 191091 + ... + 264058.

Almost surely, 2^16605656116 is an apocalyptic number.

It is an amenable number.

16605656116 is an abundant number, since it is smaller than the sum of its proper divisors (16631217484).

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

16605656116 is a wasteful number, since it uses less digits than its factorization.

16605656116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456463 (or 456461 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

It can be divided in two parts, 1660565 and 6116, that added together give a square (1666681 = 1291²).

The spelling of 16605656116 in words is "sixteen billion, six hundred five million, six hundred fifty-six thousand, one hundred sixteen".