216964518744 has 32 divisors (see below), whose sum is σ = 557071063920. Its totient is φ = 70366870656.

The previous prime is 216964518739. The next prime is 216964518787. The reversal of 216964518744 is 447815469612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122163819 + ... + 122165594.

Almost surely, 2^216964518744 is an apocalyptic number.

216964518744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

216964518744 is an abundant number, since it is smaller than the sum of its proper divisors (340106545176).

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

216964518744 is a wasteful number, since it uses less digits than its factorization.

216964518744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244329459 (or 244329455 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 57.

The spelling of 216964518744 in words is "two hundred sixteen billion, nine hundred sixty-four million, five hundred eighteen thousand, seven hundred forty-four".