65565424025420 has 24 divisors (see below), whose sum is σ = 150204425949648. Its totient is φ = 23841972372800.

The previous prime is 65565424025411. The next prime is 65565424025441. The reversal of 65565424025420 is 2452042456556.

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, 149012327111 + ... + 149012327550.

It is an arithmetic number, because the mean of its divisors is an integer number (6258517747902).

Almost surely, 2^{65565424025420} is an apocalyptic number.

It is an amenable number.

65565424025420 is an abundant number, since it is smaller than the sum of its proper divisors (84639001924228).

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

65565424025420 is a wasteful number, since it uses less digits than its factorization.

65565424025420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298024654681 (or 298024654679 counting only the distinct ones).

The product of its (nonzero) digits is 11520000, while the sum is 50.

The spelling of 65565424025420 in words is "sixty-five trillion, five hundred sixty-five billion, four hundred twenty-four million, twenty-five thousand, four hundred twenty".