16680301656 has 32 divisors (see below), whose sum is σ = 42670541760. Its totient is φ = 5430795552.

The previous prime is 16680301637. The next prime is 16680301727. The reversal of 16680301656 is 65610308661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8080510 + ... + 8082573.

It is an arithmetic number, because the mean of its divisors is an integer number (1333454430).

Almost surely, 2^16680301656 is an apocalyptic number.

It is an amenable number.

16680301656 is an abundant number, since it is smaller than the sum of its proper divisors (25990240104).

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

16680301656 is a wasteful number, since it uses less digits than its factorization.

16680301656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16163135 (or 16163131 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 16680301656 in words is "sixteen billion, six hundred eighty million, three hundred one thousand, six hundred fifty-six".