65131063664506 has 16 divisors (see below), whose sum is σ = 112182414333120. Its totient is φ = 27781022414880.

The previous prime is 65131063664461. The next prime is 65131063664507. The reversal of 65131063664506 is 60546636013156.

It is not an unprimeable number, because it can be changed into a prime (65131063664507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11024212291 + ... + 11024218198.

It is an arithmetic number, because the mean of its divisors is an integer number (7011400895820).

Almost surely, 2^{65131063664506} is an apocalyptic number.

65131063664506 is a deficient number, since it is larger than the sum of its proper divisors (47051350668614).

65131063664506 is a wasteful number, since it uses less digits than its factorization.

65131063664506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22048430709.

The product of its (nonzero) digits is 6998400, while the sum is 52.

The spelling of 65131063664506 in words is "sixty-five trillion, one hundred thirty-one billion, sixty-three million, six hundred sixty-four thousand, five hundred six".