65123156763564 has 24 divisors (see below), whose sum is σ = 152282226915840. Its totient is φ = 21660833997264.

The previous prime is 65123156763517. The next prime is 65123156763571. The reversal of 65123156763564 is 46536765132156.

It is a junction number, because it is equal to n+sod(n) for n = 65123156763498 and 65123156763507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5860609704 + ... + 5860620815.

It is an arithmetic number, because the mean of its divisors is an integer number (6345092788160).

Almost surely, 2^{65123156763564} is an apocalyptic number.

It is an amenable number.

65123156763564 is an abundant number, since it is smaller than the sum of its proper divisors (87159070152276).

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

65123156763564 is a wasteful number, since it uses less digits than its factorization.

65123156763564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11721230989 (or 11721230987 counting only the distinct ones).

The product of its digits is 81648000, while the sum is 60.

The spelling of 65123156763564 in words is "sixty-five trillion, one hundred twenty-three billion, one hundred fifty-six million, seven hundred sixty-three thousand, five hundred sixty-four".