216607724994 has 32 divisors (see below), whose sum is σ = 458916252480. Its totient is φ = 67923136512.

The previous prime is 216607724987. The next prime is 216607725017. The reversal of 216607724994 is 499427706612.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286984 + ... + 718035.

It is an arithmetic number, because the mean of its divisors is an integer number (14341132890).

Almost surely, 2^216607724994 is an apocalyptic number.

216607724994 is an abundant number, since it is smaller than the sum of its proper divisors (242308527486).

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

216607724994 is a wasteful number, since it uses less digits than its factorization.

216607724994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007154.

The product of its (nonzero) digits is 9144576, while the sum is 57.

The spelling of 216607724994 in words is "two hundred sixteen billion, six hundred seven million, seven hundred twenty-four thousand, nine hundred ninety-four".