122656156461630 has 128 divisors (see below), whose sum is σ = 361116921392640. Its totient is φ = 29376574836480.

The previous prime is 122656156461623. The next prime is 122656156461637. The reversal of 122656156461630 is 36164651656221.

122656156461630 is a `hidden beast` number, since 1 + 2 + 2 + 6 + 5 + 6 + 15 + 6 + 4 + 616 + 3 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (122656156461623) and next prime (122656156461637).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122656156461637) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 248538847 + ... + 249031866.

It is an arithmetic number, because the mean of its divisors is an integer number (2821225948380).

Almost surely, 2^{122656156461630} is an apocalyptic number.

122656156461630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122656156461630 is an abundant number, since it is smaller than the sum of its proper divisors (238460764931010).

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

122656156461630 is a wasteful number, since it uses less digits than its factorization.

122656156461630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497570823 (or 497570817 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 54.

The spelling of 122656156461630 in words is "one hundred twenty-two trillion, six hundred fifty-six billion, one hundred fifty-six million, four hundred sixty-one thousand, six hundred thirty".