65120660140056 has 32 divisors (see below), whose sum is σ = 162968284646640. Its totient is φ = 21684668807168.

The previous prime is 65120660140031. The next prime is 65120660140057. The reversal of 65120660140056 is 65004106602156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65120660140057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1388595201 + ... + 1388642096.

Almost surely, 2^{65120660140056} is an apocalyptic number.

It is an amenable number.

65120660140056 is an abundant number, since it is smaller than the sum of its proper divisors (97847624506584).

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

65120660140056 is a wasteful number, since it uses less digits than its factorization.

65120660140056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777238283 (or 2777238279 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 65120660140056 in words is "sixty-five trillion, one hundred twenty billion, six hundred sixty million, one hundred forty thousand, fifty-six".