123585440022 has 48 divisors (see below), whose sum is σ = 309294050832. Its totient is φ = 35247183360.

The previous prime is 123585440003. The next prime is 123585440029. The reversal of 123585440022 is 220044585321.

123585440022 is a `hidden beast` number, since 12 + 3 + 585 + 4 + 40 + 0 + 22 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123585440029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18354543 + ... + 18361274.

It is an arithmetic number, because the mean of its divisors is an integer number (6443626059).

Almost surely, 2^123585440022 is an apocalyptic number.

123585440022 is an abundant number, since it is smaller than the sum of its proper divisors (185708610810).

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

123585440022 is a wasteful number, since it uses less digits than its factorization.

123585440022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36715853 (or 36715850 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The spelling of 123585440022 in words is "one hundred twenty-three billion, five hundred eighty-five million, four hundred forty thousand, twenty-two".