16906021684280 has 16 divisors (see below), whose sum is σ = 38038548789720. Its totient is φ = 6762408673696.

The previous prime is 16906021684267. The next prime is 16906021684291. The reversal of 16906021684280 is 8248612060961.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211325271014 + ... + 211325271093.

Almost surely, 2^{16906021684280} is an apocalyptic number.

16906021684280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16906021684280 is an abundant number, since it is smaller than the sum of its proper divisors (21132527105440).

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

16906021684280 is a wasteful number, since it uses less digits than its factorization.

16906021684280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422650542118 (or 422650542114 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 53.

The spelling of 16906021684280 in words is "sixteen trillion, nine hundred six billion, twenty-one million, six hundred eighty-four thousand, two hundred eighty".