122589240560 has 40 divisors (see below), whose sum is σ = 285036198480. Its totient is φ = 49032906752.

The previous prime is 122589240551. The next prime is 122589240589. The reversal of 122589240560 is 65042985221.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×122589240560² (a number of 23 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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1922144 + ... + 1984896.

It is an arithmetic number, because the mean of its divisors is an integer number (7125904962).

Almost surely, 2^122589240560 is an apocalyptic number.

122589240560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122589240560 is an abundant number, since it is smaller than the sum of its proper divisors (162446957920).

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

122589240560 is a wasteful number, since it uses less digits than its factorization.

122589240560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87185 (or 87179 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 122589240560 in words is "one hundred twenty-two billion, five hundred eighty-nine million, two hundred forty thousand, five hundred sixty".