18560855212 has 6 divisors (see below), whose sum is σ = 32481496628. Its totient is φ = 9280427604.

The previous prime is 18560855207. The next prime is 18560855219. The reversal of 18560855212 is 21255806581.

It is not an unprimeable number, because it can be changed into a prime (18560855219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2320106898 + ... + 2320106905.

Almost surely, 2^18560855212 is an apocalyptic number.

It is an amenable number.

18560855212 is a deficient number, since it is larger than the sum of its proper divisors (13920641416).

18560855212 is a wasteful number, since it uses less digits than its factorization.

18560855212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4640213807 (or 4640213805 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 43.

The spelling of 18560855212 in words is "eighteen billion, five hundred sixty million, eight hundred fifty-five thousand, two hundred twelve".