65531853715 has 48 divisors (see below), whose sum is σ = 83278540800. Its totient is φ = 49485850560.

The previous prime is 65531853683. The next prime is 65531853719. The reversal of 65531853715 is 51735813556.

It is not a de Polignac number, because 65531853715 - 2⁵ = 65531853683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65531853719) 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, 39404974 + ... + 39406636.

It is an arithmetic number, because the mean of its divisors is an integer number (1734969600).

Almost surely, 2^65531853715 is an apocalyptic number.

65531853715 is a deficient number, since it is larger than the sum of its proper divisors (17746687085).

65531853715 is a wasteful number, since it uses less digits than its factorization.

65531853715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928 (or 1897 counting only the distinct ones).

The product of its digits is 1890000, while the sum is 49.

The spelling of 65531853715 in words is "sixty-five billion, five hundred thirty-one million, eight hundred fifty-three thousand, seven hundred fifteen".