222130176664 has 72 divisors (see below), whose sum is σ = 478570104180. Its totient is φ = 96578115040.

The previous prime is 222130176649. The next prime is 222130176673. The reversal of 222130176664 is 466671031222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 295179 + ... + 728965.

Almost surely, 2^222130176664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222130176664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239285052090).

222130176664 is an abundant number, since it is smaller than the sum of its proper divisors (256439927516).

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

222130176664 is a wasteful number, since it uses less digits than its factorization.

222130176664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433861 (or 433823 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 222130176664 in words is "two hundred twenty-two billion, one hundred thirty million, one hundred seventy-six thousand, six hundred sixty-four".