216231160506 has 64 divisors (see below), whose sum is σ = 461960478720. Its totient is φ = 67324259520.

The previous prime is 216231160499. The next prime is 216231160517. The reversal of 216231160506 is 605061132612.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24392631 + ... + 24401493.

It is an arithmetic number, because the mean of its divisors is an integer number (7218132480).

Almost surely, 2^216231160506 is an apocalyptic number.

216231160506 is an abundant number, since it is smaller than the sum of its proper divisors (245729318214).

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

216231160506 is a wasteful number, since it uses less digits than its factorization.

216231160506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13451.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 216231160506 in words is "two hundred sixteen billion, two hundred thirty-one million, one hundred sixty thousand, five hundred six".