16945800012 has 72 divisors (see below), whose sum is σ = 43208797632. Its totient is φ = 5599432800.

The previous prime is 16945799977. The next prime is 16945800029. The reversal of 16945800012 is 21000854961.

16945800012 is a `hidden beast` number, since 1 + 69 + 4 + 580 + 0 + 0 + 12 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 16945800012.

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, 7219023 + ... + 7221369.

Almost surely, 2^16945800012 is an apocalyptic number.

16945800012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16945800012 is an abundant number, since it is smaller than the sum of its proper divisors (26262997620).

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

16945800012 is a wasteful number, since it uses less digits than its factorization.

16945800012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4019 (or 4014 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 16945800012 in words is "sixteen billion, nine hundred forty-five million, eight hundred thousand, twelve".