120646620432 has 240 divisors, whose sum is σ = 385037161600. Its totient is φ = 35166493440.

The previous prime is 120646620401. The next prime is 120646620433. The reversal of 120646620432 is 234026646021.

120646620432 is a `hidden beast` number, since 1 + 2 + 0 + 646 + 6 + 2 + 0 + 4 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (120646620433) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6000957 + ... + 6021027.

Almost surely, 2^120646620432 is an apocalyptic number.

120646620432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120646620432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192518580800).

120646620432 is an abundant number, since it is smaller than the sum of its proper divisors (264390541168).

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

120646620432 is a wasteful number, since it uses less digits than its factorization.

120646620432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20143 (or 20108 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 120646620432 in words is "one hundred twenty billion, six hundred forty-six million, six hundred twenty thousand, four hundred thirty-two".