216995610360 has 128 divisors (see below), whose sum is σ = 666359654400. Its totient is φ = 56504663040.

The previous prime is 216995610353. The next prime is 216995610389. The reversal of 216995610360 is 63016599612.

It is a happy number.

It is a congruent number.

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, 2432140 + ... + 2519780.

It is an arithmetic number, because the mean of its divisors is an integer number (5205934800).

Almost surely, 2^216995610360 is an apocalyptic number.

216995610360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216995610360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333179827200).

216995610360 is an abundant number, since it is smaller than the sum of its proper divisors (449364044040).

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

216995610360 is a wasteful number, since it uses less digits than its factorization.

216995610360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88141 (or 88137 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 48.

The spelling of 216995610360 in words is "two hundred sixteen billion, nine hundred ninety-five million, six hundred ten thousand, three hundred sixty".