65531261227175 has 12 divisors (see below), whose sum is σ = 81260181432936. Its totient is φ = 52424094458400.

The previous prime is 65531261227127. The next prime is 65531261227189. The reversal of 65531261227175 is 57172216213556.

It is a de Polignac number, because none of the positive numbers 2^k-65531261227175 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21399461 + ... + 24269310.

It is an arithmetic number, because the mean of its divisors is an integer number (6771681786078).

Almost surely, 2^{65531261227175} is an apocalyptic number.

65531261227175 is a deficient number, since it is larger than the sum of its proper divisors (15728920205761).

65531261227175 is a wasteful number, since it uses less digits than its factorization.

65531261227175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45726178 (or 45726173 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 53.

The spelling of 65531261227175 in words is "sixty-five trillion, five hundred thirty-one billion, two hundred sixty-one million, two hundred twenty-seven thousand, one hundred seventy-five".