120640565412 has 18 divisors (see below), whose sum is σ = 304952540438. Its totient is φ = 40213521792.

The previous prime is 120640565369. The next prime is 120640565447. The reversal of 120640565412 is 214565046021.

120640565412 is a `hidden beast` number, since 1 + 2 + 0 + 64 + 0 + 56 + 541 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 110653361316 + 9987204096 = 332646^2 + 99936^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3351126817 = 120640565412 / (1 + 2 + 0 + 6 + 4 + 0 + 5 + 6 + 5 + 4 + 1 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1675563373 + ... + 1675563444.

Almost surely, 2^120640565412 is an apocalyptic number.

120640565412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120640565412 is an abundant number, since it is smaller than the sum of its proper divisors (184311975026).

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

120640565412 is a wasteful number, since it uses less digits than its factorization.

120640565412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3351126827 (or 3351126822 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 120640565412 in words is "one hundred twenty billion, six hundred forty million, five hundred sixty-five thousand, four hundred twelve".