222660660488 has 36 divisors (see below), whose sum is σ = 485670543165. Its totient is φ = 95421993408.

The previous prime is 222660660473. The next prime is 222660660491. The reversal of 222660660488 is 884066066222.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 183322698244 + 39337962244 = 428162^2 + 198338^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=333662.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9330620 + ... + 9354452.

Almost surely, 2^222660660488 is an apocalyptic number.

222660660488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

222660660488 is an abundant number, since it is smaller than the sum of its proper divisors (263009882677).

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

222660660488 is an frugal number, since it uses more digits than its factorization.

222660660488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47686 (or 23842 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 50.

Multiplying 222660660488 by its sum of digits (50), we get a square (11133033024400 = 3336620²).

The spelling of 222660660488 in words is "two hundred twenty-two billion, six hundred sixty million, six hundred sixty thousand, four hundred eighty-eight".