65120677658380 has 48 divisors (see below), whose sum is σ = 140206300242624. Its totient is φ = 25391645281280.

The previous prime is 65120677658341. The next prime is 65120677658381. The reversal of 65120677658380 is 8385677602156.

It is not an unprimeable number, because it can be changed into a prime (65120677658381) 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, 32305672 + ... + 34262191.

It is an arithmetic number, because the mean of its divisors is an integer number (2920964588388).

Almost surely, 2^{65120677658380} is an apocalyptic number.

It is an amenable number.

65120677658380 is an abundant number, since it is smaller than the sum of its proper divisors (75085622584244).

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

65120677658380 is a wasteful number, since it uses less digits than its factorization.

65120677658380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66569106 (or 66569104 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 64.

The spelling of 65120677658380 in words is "sixty-five trillion, one hundred twenty billion, six hundred seventy-seven million, six hundred fifty-eight thousand, three hundred eighty".