65020520474604 has 36 divisors (see below), whose sum is σ = 165062823457896. Its totient is φ = 21580487479488.

The previous prime is 65020520474603. The next prime is 65020520474617. The reversal of 65020520474604 is 40647402502056.

65020520474604 is a `hidden beast` number, since 6 + 5 + 0 + 20 + 520 + 47 + 4 + 60 + 4 = 666.

65020520474604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 65020520474604.

It is not an unprimeable number, because it can be changed into a prime (65020520474603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3875797554 + ... + 3875814329.

It is an arithmetic number, because the mean of its divisors is an integer number (4585078429386).

Almost surely, 2^{65020520474604} is an apocalyptic number.

It is an amenable number.

65020520474604 is an abundant number, since it is smaller than the sum of its proper divisors (100042302983292).

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

65020520474604 is a wasteful number, since it uses less digits than its factorization.

65020520474604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7751612126 (or 7751612121 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 45.

The spelling of 65020520474604 in words is "sixty-five trillion, twenty billion, five hundred twenty million, four hundred seventy-four thousand, six hundred four".