42556256261022 has 16 divisors (see below), whose sum is σ = 97271442882432. Its totient is φ = 12158930360280.

The previous prime is 42556256261011. The next prime is 42556256261041. The reversal of 42556256261022 is 22016265265524.

42556256261022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42556256261022² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506622098304 + ... + 506622098387.

It is an arithmetic number, because the mean of its divisors is an integer number (6079465180152).

Almost surely, 2^{42556256261022} is an apocalyptic number.

42556256261022 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

42556256261022 is an abundant number, since it is smaller than the sum of its proper divisors (54715186621410).

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

42556256261022 is a wasteful number, since it uses less digits than its factorization.

42556256261022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013244196703.

The product of its (nonzero) digits is 3456000, while the sum is 48.

The spelling of 42556256261022 in words is "forty-two trillion, five hundred fifty-six billion, two hundred fifty-six million, two hundred sixty-one thousand, twenty-two".