65499657649371 has 32 divisors (see below), whose sum is σ = 105902159616000. Its totient is φ = 39680214567840.

The previous prime is 65499657649337. The next prime is 65499657649441. The reversal of 65499657649371 is 17394675699456.

65499657649371 is a `hidden beast` number, since 6 + 5 + 4 + 9 + 9 + 6 + 57 + 6 + 493 + 71 = 666.

It is not a de Polignac number, because 65499657649371 - 2¹³ = 65499657641179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65499657649271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45251976 + ... + 46676981.

It is an arithmetic number, because the mean of its divisors is an integer number (3309442488000).

Almost surely, 2^{65499657649371} is an apocalyptic number.

65499657649371 is a deficient number, since it is larger than the sum of its proper divisors (40402501966629).

65499657649371 is a wasteful number, since it uses less digits than its factorization.

65499657649371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91931376 (or 91931370 counting only the distinct ones).

The product of its digits is 9258883200, while the sum is 81.

The spelling of 65499657649371 in words is "sixty-five trillion, four hundred ninety-nine billion, six hundred fifty-seven million, six hundred forty-nine thousand, three hundred seventy-one".