16457594220 has 36 divisors (see below), whose sum is σ = 49921369680. Its totient is φ = 4388691744.

The previous prime is 16457594201. The next prime is 16457594239. The reversal of 16457594220 is 2249575461.

16457594220 is a `hidden beast` number, since 1 + 6 + 4 + 57 + 594 + 2 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (16457594201) and next prime (16457594239).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45715360 + ... + 45715719.

Almost surely, 2^16457594220 is an apocalyptic number.

16457594220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16457594220 is an abundant number, since it is smaller than the sum of its proper divisors (33463775460).

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

16457594220 is a wasteful number, since it uses less digits than its factorization.

16457594220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91431094 (or 91431089 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 16457594220 in words is "sixteen billion, four hundred fifty-seven million, five hundred ninety-four thousand, two hundred twenty".