124156621144 has 8 divisors (see below), whose sum is σ = 232793664660. Its totient is φ = 62078310568.

The previous prime is 124156621117. The next prime is 124156621163. The reversal of 124156621144 is 441126651421.

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 7759788814 + ... + 7759788829.

Almost surely, 2^124156621144 is an apocalyptic number.

It is an amenable number.

124156621144 is a deficient number, since it is larger than the sum of its proper divisors (108637043516).

124156621144 is a wasteful number, since it uses less digits than its factorization.

124156621144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15519577649 (or 15519577645 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The spelling of 124156621144 in words is "one hundred twenty-four billion, one hundred fifty-six million, six hundred twenty-one thousand, one hundred forty-four".