124256155072 has 56 divisors (see below), whose sum is σ = 281829215360. Its totient is φ = 53246211840.

The previous prime is 124256155063. The next prime is 124256155097. The reversal of 124256155072 is 270551652421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×124256155072² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6751579 + ... + 6769957.

It is an arithmetic number, because the mean of its divisors is an integer number (5032664560).

Almost surely, 2^124256155072 is an apocalyptic number.

It is an amenable number.

124256155072 is an abundant number, since it is smaller than the sum of its proper divisors (157573060288).

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

124256155072 is a wasteful number, since it uses less digits than its factorization.

124256155072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33489 (or 33479 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 124256155072 in words is "one hundred twenty-four billion, two hundred fifty-six million, one hundred fifty-five thousand, seventy-two".