120919553440 has 48 divisors (see below), whose sum is σ = 326482797312. Its totient is φ = 41458132224.

The previous prime is 120919553431. The next prime is 120919553471. The reversal of 120919553440 is 44355919021.

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, 53980824 + ... + 53983063.

It is an arithmetic number, because the mean of its divisors is an integer number (6801724944).

Almost surely, 2^120919553440 is an apocalyptic number.

120919553440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120919553440 is an abundant number, since it is smaller than the sum of its proper divisors (205563243872).

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

120919553440 is a wasteful number, since it uses less digits than its factorization.

120919553440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107963909 (or 107963901 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 120919553440 in words is "one hundred twenty billion, nine hundred nineteen million, five hundred fifty-three thousand, four hundred forty".