16633680912 has 80 divisors (see below), whose sum is σ = 49285020160. Its totient is φ = 5365699200.

The previous prime is 16633680871. The next prime is 16633680913. The reversal of 16633680912 is 21908633661.

16633680912 is a `hidden beast` number, since 1 + 6 + 633 + 6 + 8 + 0 + 9 + 1 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (16633680913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607639 + ... + 634422.

It is an arithmetic number, because the mean of its divisors is an integer number (616062752).

Almost surely, 2^16633680912 is an apocalyptic number.

16633680912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16633680912 is an abundant number, since it is smaller than the sum of its proper divisors (32651339248).

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

16633680912 is a wasteful number, since it uses less digits than its factorization.

16633680912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242109 (or 1242097 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 16633680912 in words is "sixteen billion, six hundred thirty-three million, six hundred eighty thousand, nine hundred twelve".