22258085727880 has 32 divisors (see below), whose sum is σ = 50080839652440. Its totient is φ = 8903208199680.

The previous prime is 22258085727847. The next prime is 22258085727881. The reversal of 22258085727880 is 8872758085222.

It can be written as a sum of positive squares in 4 ways, for example, as 9466833619684 + 12791252108196 = 3076822^2 + 3576486^2 .

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (22258085727881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18874972 + ... + 20019508.

Almost surely, 2^{22258085727880} is an apocalyptic number.

22258085727880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22258085727880 is an abundant number, since it is smaller than the sum of its proper divisors (27822753924560).

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

22258085727880 is a wasteful number, since it uses less digits than its factorization.

22258085727880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630729 (or 1630725 counting only the distinct ones).

The product of its (nonzero) digits is 80281600, while the sum is 64.

The spelling of 22258085727880 in words is "twenty-two trillion, two hundred fifty-eight billion, eighty-five million, seven hundred twenty-seven thousand, eight hundred eighty".