65221414477044 has 96 divisors (see below), whose sum is σ = 180293802393600. Its totient is φ = 17961600431232.

The previous prime is 65221414477003. The next prime is 65221414477069. The reversal of 65221414477044 is 44077441412256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97728244 + ... + 98393355.

It is an arithmetic number, because the mean of its divisors is an integer number (1878060441600).

Almost surely, 2^{65221414477044} is an apocalyptic number.

It is an amenable number.

65221414477044 is an abundant number, since it is smaller than the sum of its proper divisors (115072387916556).

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

65221414477044 is a wasteful number, since it uses less digits than its factorization.

65221414477044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196121757 (or 196121755 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 51.

The spelling of 65221414477044 in words is "sixty-five trillion, two hundred twenty-one billion, four hundred fourteen million, four hundred seventy-seven thousand, forty-four".