65731415052 has 12 divisors (see below), whose sum is σ = 153373301816. Its totient is φ = 21910471680.

The previous prime is 65731415033. The next prime is 65731415069. The reversal of 65731415052 is 25051413756.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 65731415052.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2738808949 + ... + 2738808972.

Almost surely, 2^65731415052 is an apocalyptic number.

It is an amenable number.

65731415052 is an abundant number, since it is smaller than the sum of its proper divisors (87641886764).

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

65731415052 is a wasteful number, since it uses less digits than its factorization.

65731415052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5477617928 (or 5477617926 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 39.

The spelling of 65731415052 in words is "sixty-five billion, seven hundred thirty-one million, four hundred fifteen thousand, fifty-two".