66133425263 has 4 divisors (see below), whose sum is σ = 66718676928. Its totient is φ = 65548173600.

The previous prime is 66133425251. The next prime is 66133425287. The reversal of 66133425263 is 36252433166.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66133425263 - 2²⁶ = 66066316399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66133425263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66133425763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292625663 + ... + 292625888.

It is an arithmetic number, because the mean of its divisors is an integer number (16679669232).

Almost surely, 2^66133425263 is an apocalyptic number.

66133425263 is a deficient number, since it is larger than the sum of its proper divisors (585251665).

66133425263 is a wasteful number, since it uses less digits than its factorization.

66133425263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585251664.

The product of its digits is 466560, while the sum is 41.

The spelling of 66133425263 in words is "sixty-six billion, one hundred thirty-three million, four hundred twenty-five thousand, two hundred sixty-three".