51663666234 has 16 divisors (see below), whose sum is σ = 107819825472. Its totient is φ = 16472473248.

The previous prime is 51663666203. The next prime is 51663666253. The reversal of 51663666234 is 43266636615.

51663666234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187187059 + ... + 187187334.

It is an arithmetic number, because the mean of its divisors is an integer number (6738739092).

Almost surely, 2^51663666234 is an apocalyptic number.

51663666234 is an abundant number, since it is smaller than the sum of its proper divisors (56156159238).

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

51663666234 is a wasteful number, since it uses less digits than its factorization.

51663666234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374374421.

The product of its digits is 2799360, while the sum is 48.

The spelling of 51663666234 in words is "fifty-one billion, six hundred sixty-three million, six hundred sixty-six thousand, two hundred thirty-four".