65120720666112 has 120 divisors (see below), whose sum is σ = 197834536116360. Its totient is φ = 20564438077440.

The previous prime is 65120720666077. The next prime is 65120720666117. The reversal of 65120720666112 is 21166602702156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65120720666117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 371809839 + ... + 371984942.

It is an arithmetic number, because the mean of its divisors is an integer number (1648621134303).

Almost surely, 2^{65120720666112} is an apocalyptic number.

It is an amenable number.

65120720666112 is an abundant number, since it is smaller than the sum of its proper divisors (132713815450248).

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

65120720666112 is a wasteful number, since it uses less digits than its factorization.

65120720666112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743794824 (or 743794805 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 65120720666112 in words is "sixty-five trillion, one hundred twenty billion, seven hundred twenty million, six hundred sixty-six thousand, one hundred twelve".