16672224729564 has 72 divisors (see below), whose sum is σ = 44015174915712. Its totient is φ = 5311047947040.

The previous prime is 16672224729553. The next prime is 16672224729581. The reversal of 16672224729564 is 46592742227661.

16672224729564 is a `hidden beast` number, since 1 + 6 + 6 + 7 + 2 + 2 + 2 + 47 + 29 + 564 = 666.

16672224729564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 8035222 + ... + 9894909.

Almost surely, 2^{16672224729564} is an apocalyptic number.

It is an amenable number.

16672224729564 is an abundant number, since it is smaller than the sum of its proper divisors (27342950186148).

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

16672224729564 is a wasteful number, since it uses less digits than its factorization.

16672224729564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17931287 (or 17931282 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 63.

The spelling of 16672224729564 in words is "sixteen trillion, six hundred seventy-two billion, two hundred twenty-four million, seven hundred twenty-nine thousand, five hundred sixty-four".