120972045816 has 48 divisors (see below), whose sum is σ = 327889036800. Its totient is φ = 40292456832.

The previous prime is 120972045797. The next prime is 120972045871. The reversal of 120972045816 is 618540279021.

120972045816 is a `hidden beast` number, since 120 + 9 + 72 + 0 + 458 + 1 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 564741 + ... + 748916.

It is an arithmetic number, because the mean of its divisors is an integer number (6831021600).

Almost surely, 2^120972045816 is an apocalyptic number.

It is an amenable number.

120972045816 is an abundant number, since it is smaller than the sum of its proper divisors (206916990984).

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

120972045816 is a wasteful number, since it uses less digits than its factorization.

120972045816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314948 (or 1314941 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 120972045816 in words is "one hundred twenty billion, nine hundred seventy-two million, forty-five thousand, eight hundred sixteen".