42556686560 has 48 divisors (see below), whose sum is σ = 104911492896. Its totient is φ = 16282556928.

The previous prime is 42556686541. The next prime is 42556686563. The reversal of 42556686560 is 6568665524.

It is a super-2 number, since 2×42556686560² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42556686563) 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, 5778479 + ... + 5785838.

It is an arithmetic number, because the mean of its divisors is an integer number (2185656102).

Almost surely, 2^42556686560 is an apocalyptic number.

42556686560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42556686560 is an abundant number, since it is smaller than the sum of its proper divisors (62354806336).

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

42556686560 is a wasteful number, since it uses less digits than its factorization.

42556686560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11564355 (or 11564347 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 53.

The spelling of 42556686560 in words is "forty-two billion, five hundred fifty-six million, six hundred eighty-six thousand, five hundred sixty".