120745763640 has 80 divisors (see below), whose sum is σ = 405839938680. Its totient is φ = 32198869440.

The previous prime is 120745763627. The next prime is 120745763657. The reversal of 120745763640 is 46367547021.

120745763640 is a `hidden beast` number, since 1 + 2 + 0 + 7 + 4 + 5 + 7 + 636 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18630366 + ... + 18636845.

Almost surely, 2^120745763640 is an apocalyptic number.

120745763640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120745763640 is an abundant number, since it is smaller than the sum of its proper divisors (285094175040).

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

120745763640 is a wasteful number, since it uses less digits than its factorization.

120745763640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37267234 (or 37267221 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 120745763640 in words is "one hundred twenty billion, seven hundred forty-five million, seven hundred sixty-three thousand, six hundred forty".