16656116600 has 24 divisors (see below), whose sum is σ = 38725471560. Its totient is φ = 6662446560.

The previous prime is 16656116591. The next prime is 16656116629. The reversal of 16656116600 is 661165661.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41640092 + ... + 41640491.

It is an arithmetic number, because the mean of its divisors is an integer number (1613561315).

Almost surely, 2^16656116600 is an apocalyptic number.

16656116600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16656116600 is an abundant number, since it is smaller than the sum of its proper divisors (22069354960).

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

16656116600 is a wasteful number, since it uses less digits than its factorization.

16656116600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83280599 (or 83280590 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 16656116600 in words is "sixteen billion, six hundred fifty-six million, one hundred sixteen thousand, six hundred".