65651252056005 has 256 divisors, whose sum is σ = 135973377146880. Its totient is φ = 26262837273600.

The previous prime is 65651252055971. The next prime is 65651252056043. The reversal of 65651252056005 is 50065025215656.

It is not a de Polignac number, because 65651252056005 - 2⁶ = 65651252055941 is a prime.

It is a super-2 number, since 2×65651252056005² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 926941024 + ... + 927011846.

It is an arithmetic number, because the mean of its divisors is an integer number (531146004480).

Almost surely, 2^{65651252056005} is an apocalyptic number.

It is an amenable number.

65651252056005 is an abundant number, since it is smaller than the sum of its proper divisors (70322125090875).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65651252056005 is a wasteful number, since it uses less digits than its factorization.

65651252056005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71192.

The product of its (nonzero) digits is 2700000, while the sum is 48.

The spelling of 65651252056005 in words is "sixty-five trillion, six hundred fifty-one billion, two hundred fifty-two million, fifty-six thousand, five".