65313980356 has 27 divisors (see below), whose sum is σ = 116545088653. Its totient is φ = 32027531120.

The previous prime is 65313980353. The next prime is 65313980357. The reversal of 65313980356 is 65308931356.

The square root of 65313980356 is 255566.

It is a perfect power (a square), and thus also a powerful number.

65313980356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 47084660100 + 18229320256 = 216990^2 + 135016^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65313980353) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 27088791 + ... + 27091201.

Almost surely, 2^65313980356 is an apocalyptic number.

65313980356 is the 255566-th square number.

It is an amenable number.

65313980356 is a deficient number, since it is larger than the sum of its proper divisors (51231108297).

65313980356 is an frugal number, since it uses more digits than its factorization.

65313980356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4932 (or 2466 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 49.

Multiplying 65313980356 by its sum of digits (49), we get a square (3200385037444 = 1788962²).

The spelling of 65313980356 in words is "sixty-five billion, three hundred thirteen million, nine hundred eighty thousand, three hundred fifty-six".