65023397571 has 64 divisors (see below), whose sum is σ = 97251950592. Its totient is φ = 38633364000.

The previous prime is 65023397519. The next prime is 65023397603. The reversal of 65023397571 is 17579332056.

It is not a de Polignac number, because 65023397571 - 2⁹ = 65023397059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65023397571.

It is not an unprimeable number, because it can be changed into a prime (65023397071) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 59818590 + ... + 59819676.

It is an arithmetic number, because the mean of its divisors is an integer number (1519561728).

Almost surely, 2^65023397571 is an apocalyptic number.

65023397571 is a deficient number, since it is larger than the sum of its proper divisors (32228553021).

65023397571 is a wasteful number, since it uses less digits than its factorization.

65023397571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405 (or 1383 counting only the distinct ones).

The product of its (nonzero) digits is 1190700, while the sum is 48.

The spelling of 65023397571 in words is "sixty-five billion, twenty-three million, three hundred ninety-seven thousand, five hundred seventy-one".