16720623102 has 16 divisors (see below), whose sum is σ = 33446406672. Its totient is φ = 5572680960.

The previous prime is 16720623091. The next prime is 16720623137. The reversal of 16720623102 is 20132602761.

It is a super-2 number, since 2×16720623102² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16720623102.

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, 172243 + ... + 251214.

It is an arithmetic number, because the mean of its divisors is an integer number (2090400417).

Almost surely, 2^16720623102 is an apocalyptic number.

16720623102 is an abundant number, since it is smaller than the sum of its proper divisors (16725783570).

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

16720623102 is a wasteful number, since it uses less digits than its factorization.

16720623102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430043.

The product of its (nonzero) digits is 6048, while the sum is 30.

The spelling of 16720623102 in words is "sixteen billion, seven hundred twenty million, six hundred twenty-three thousand, one hundred two".