16657328660 has 48 divisors (see below), whose sum is σ = 40731901056. Its totient is φ = 5603325312.

The previous prime is 16657328651. The next prime is 16657328689. The reversal of 16657328660 is 6682375661.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 16657328599 and 16657328608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1115042 + ... + 1129881.

It is an arithmetic number, because the mean of its divisors is an integer number (848581272).

Almost surely, 2^16657328660 is an apocalyptic number.

16657328660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16657328660 is an abundant number, since it is smaller than the sum of its proper divisors (24074572396).

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

16657328660 is a wasteful number, since it uses less digits than its factorization.

16657328660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244992 (or 2244990 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 16657328660 in words is "sixteen billion, six hundred fifty-seven million, three hundred twenty-eight thousand, six hundred sixty".