120656672135 has 16 divisors (see below), whose sum is σ = 154244684160. Its totient is φ = 90343303200.

The previous prime is 120656672131. The next prime is 120656672239. The reversal of 120656672135 is 531276656021.

It is a happy number.

It is not a de Polignac number, because 120656672135 - 2² = 120656672131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120656672131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7643141 + ... + 7658910.

It is an arithmetic number, because the mean of its divisors is an integer number (9640292760).

Almost surely, 2^120656672135 is an apocalyptic number.

120656672135 is a deficient number, since it is larger than the sum of its proper divisors (33588012025).

120656672135 is a wasteful number, since it uses less digits than its factorization.

120656672135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15302158.

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 120656672135 in words is "one hundred twenty billion, six hundred fifty-six million, six hundred seventy-two thousand, one hundred thirty-five".