22556277142256 has 160 divisors (see below), whose sum is σ = 51863425528320. Its totient is φ = 9368309376000.

The previous prime is 22556277142241. The next prime is 22556277142279. The reversal of 22556277142256 is 65224177265522.

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, 1358558051 + ... + 1358574653.

It is an arithmetic number, because the mean of its divisors is an integer number (324146409552).

Almost surely, 2^{22556277142256} is an apocalyptic number.

22556277142256 is a gapful number since it is divisible by the number (26) 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 22556277142256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25931712764160).

22556277142256 is an abundant number, since it is smaller than the sum of its proper divisors (29307148386064).

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

22556277142256 is a wasteful number, since it uses less digits than its factorization.

22556277142256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22615 (or 22609 counting only the distinct ones).

The product of its digits is 28224000, while the sum is 56.

The spelling of 22556277142256 in words is "twenty-two trillion, five hundred fifty-six billion, two hundred seventy-seven million, one hundred forty-two thousand, two hundred fifty-six".