120401044556 has 36 divisors (see below), whose sum is σ = 232309535472. Its totient is φ = 54277350624.

The previous prime is 120401044531. The next prime is 120401044601. The reversal of 120401044556 is 655440104021.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 529976 + ... + 722271.

It is an arithmetic number, because the mean of its divisors is an integer number (6453042652).

Almost surely, 2^120401044556 is an apocalyptic number.

It is an amenable number.

120401044556 is a deficient number, since it is larger than the sum of its proper divisors (111908490916).

120401044556 is a wasteful number, since it uses less digits than its factorization.

120401044556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252350 (or 1252305 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 120401044556 its reverse (655440104021), we get a palindrome (775841148577).

The spelling of 120401044556 in words is "one hundred twenty billion, four hundred one million, forty-four thousand, five hundred fifty-six".