65220120511748 has 24 divisors (see below), whose sum is σ = 117051708473784. Its totient is φ = 31778580838400.

The previous prime is 65220120511717. The next prime is 65220120511783. The reversal of 65220120511748 is 84711502102256.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1326348395584 + 63893772116164 = 1151672^2 + 7993358^2 .

It is a junction number, because it is equal to n+sod(n) for n = 65220120511699 and 65220120511708.

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, 225555665 + ... + 225844632.

It is an arithmetic number, because the mean of its divisors is an integer number (4877154519741).

Almost surely, 2^{65220120511748} is an apocalyptic number.

It is an amenable number.

65220120511748 is a deficient number, since it is larger than the sum of its proper divisors (51831587962036).

65220120511748 is a wasteful number, since it uses less digits than its factorization.

65220120511748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451401223 (or 451401221 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 65220120511748 in words is "sixty-five trillion, two hundred twenty billion, one hundred twenty million, five hundred eleven thousand, seven hundred forty-eight".