65342640778252 has 48 divisors (see below), whose sum is σ = 117034785578592. Its totient is φ = 31909748682240.

The previous prime is 65342640778223. The next prime is 65342640778297. The reversal of 65342640778252 is 25287704624356.

65342640778252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×65342640778252² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412872928 + ... + 413031160.

It is an arithmetic number, because the mean of its divisors is an integer number (2438224699554).

Almost surely, 2^{65342640778252} is an apocalyptic number.

It is an amenable number.

65342640778252 is a deficient number, since it is larger than the sum of its proper divisors (51692144800340).

65342640778252 is a wasteful number, since it uses less digits than its factorization.

65342640778252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167098 (or 167096 counting only the distinct ones).

The product of its (nonzero) digits is 135475200, while the sum is 61.

The spelling of 65342640778252 in words is "sixty-five trillion, three hundred forty-two billion, six hundred forty million, seven hundred seventy-eight thousand, two hundred fifty-two".