216037639968 has 96 divisors (see below), whose sum is σ = 605578498560. Its totient is φ = 67286446080.

The previous prime is 216037639913. The next prime is 216037639969. The reversal of 216037639968 is 869936730612.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (216037639969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1165305 + ... + 1337912.

It is an arithmetic number, because the mean of its divisors is an integer number (6308109360).

Almost surely, 2^216037639968 is an apocalyptic number.

It is an amenable number.

216037639968 is an abundant number, since it is smaller than the sum of its proper divisors (389540858592).

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

216037639968 is a wasteful number, since it uses less digits than its factorization.

216037639968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2503290 (or 2503282 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 60.

The spelling of 216037639968 in words is "two hundred sixteen billion, thirty-seven million, six hundred thirty-nine thousand, nine hundred sixty-eight".