16720552166700 has 72 divisors (see below), whose sum is σ = 49100192650432. Its totient is φ = 4392264444480.

The previous prime is 16720552166699. The next prime is 16720552166761. The reversal of 16720552166700 is 766125502761.

It is a self number, because there is not a number n which added to its sum of digits gives 16720552166700.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 415914034 + ... + 415954233.

Almost surely, 2^{16720552166700} is an apocalyptic number.

16720552166700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16720552166700 is an abundant number, since it is smaller than the sum of its proper divisors (32379640483732).

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

16720552166700 is a wasteful number, since it uses less digits than its factorization.

16720552166700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831868351 (or 831868344 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 48.

The spelling of 16720552166700 in words is "sixteen trillion, seven hundred twenty billion, five hundred fifty-two million, one hundred sixty-six thousand, seven hundred".