65180312025938 has 4 divisors (see below), whose sum is σ = 97770468038910. Its totient is φ = 32590156012968.

The previous prime is 65180312025931. The next prime is 65180312025943. The reversal of 65180312025938 is 83952021308156.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 44436049285369 + 20744262740569 = 6666037^2 + 4554587^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 65180312025938.

It is not an unprimeable number, because it can be changed into a prime (65180312025931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16295078006483 + ... + 16295078006486.

Almost surely, 2^{65180312025938} is an apocalyptic number.

65180312025938 is a deficient number, since it is larger than the sum of its proper divisors (32590156012972).

65180312025938 is a wasteful number, since it uses less digits than its factorization.

65180312025938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32590156012971.

The product of its (nonzero) digits is 3110400, while the sum is 53.

The spelling of 65180312025938 in words is "sixty-five trillion, one hundred eighty billion, three hundred twelve million, twenty-five thousand, nine hundred thirty-eight".