65481464331 has 48 divisors (see below), whose sum is σ = 105329652480. Its totient is φ = 39010682880.

The previous prime is 65481464327. The next prime is 65481464351. The reversal of 65481464331 is 13346418456.

65481464331 is a `hidden beast` number, since 6 + 548 + 14 + 64 + 3 + 31 = 666.

It is not a de Polignac number, because 65481464331 - 2² = 65481464327 is a prime.

It is a super-2 number, since 2×65481464331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65481464351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121135 + ... + 381623.

It is an arithmetic number, because the mean of its divisors is an integer number (2194367760).

Almost surely, 2^65481464331 is an apocalyptic number.

65481464331 is a deficient number, since it is larger than the sum of its proper divisors (39848188149).

65481464331 is a wasteful number, since it uses less digits than its factorization.

65481464331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260596 (or 260593 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The spelling of 65481464331 in words is "sixty-five billion, four hundred eighty-one million, four hundred sixty-four thousand, three hundred thirty-one".