222870977664 has 256 divisors, whose sum is σ = 646507008000. Its totient is φ = 67787366400.

The previous prime is 222870977639. The next prime is 222870977729. The reversal of 222870977664 is 466779078222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 222870977598 and 222870977607.

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, 23627029 + ... + 23636459.

It is an arithmetic number, because the mean of its divisors is an integer number (2525418000).

Almost surely, 2^222870977664 is an apocalyptic number.

222870977664 is a gapful number since it is divisible by the number (24) 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 222870977664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323253504000).

222870977664 is an abundant number, since it is smaller than the sum of its proper divisors (423636030336).

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

222870977664 is a wasteful number, since it uses less digits than its factorization.

222870977664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9587 (or 9575 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 60.

The spelling of 222870977664 in words is "two hundred twenty-two billion, eight hundred seventy million, nine hundred seventy-seven thousand, six hundred sixty-four".