216672307436 has 12 divisors (see below), whose sum is σ = 408343964112. Its totient is φ = 100002603408.

The previous prime is 216672307421. The next prime is 216672307441. The reversal of 216672307436 is 634703276612.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2083387520 + ... + 2083387623.

It is an arithmetic number, because the mean of its divisors is an integer number (34028663676).

Almost surely, 2^216672307436 is an apocalyptic number.

216672307436 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

216672307436 is a deficient number, since it is larger than the sum of its proper divisors (191671656676).

216672307436 is a wasteful number, since it uses less digits than its factorization.

216672307436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4166775160 (or 4166775158 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 47.

The spelling of 216672307436 in words is "two hundred sixteen billion, six hundred seventy-two million, three hundred seven thousand, four hundred thirty-six".