66263384253 has 16 divisors (see below), whose sum is σ = 96389312832. Its totient is φ = 40157040000.

The previous prime is 66263384219. The next prime is 66263384311. The reversal of 66263384253 is 35248336266.

It is not a de Polignac number, because 66263384253 - 2⁶ = 66263384189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66263382253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539703 + ... + 651003.

It is an arithmetic number, because the mean of its divisors is an integer number (6024332052).

Almost surely, 2^66263384253 is an apocalyptic number.

It is an amenable number.

66263384253 is a deficient number, since it is larger than the sum of its proper divisors (30125928579).

66263384253 is a wasteful number, since it uses less digits than its factorization.

66263384253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129356.

The product of its digits is 3732480, while the sum is 48.

The spelling of 66263384253 in words is "sixty-six billion, two hundred sixty-three million, three hundred eighty-four thousand, two hundred fifty-three".