636045325266051 has 64 divisors (see below), whose sum is σ = 1003507269580800. Its totient is φ = 396776508922368.

The previous prime is 636045325266037. The next prime is 636045325266077. The reversal of 636045325266051 is 150662523540636.

It is a happy number.

636045325266051 is a `hidden beast` number, since 6 + 3 + 6 + 0 + 4 + 5 + 3 + 2 + 5 + 26 + 605 + 1 = 666.

636045325266051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 636045325266051 - 2⁵ = 636045325266019 is a prime.

It is a super-2 number, since 2×636045325266051² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (636045325266151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 70669641 + ... + 79159893.

It is an arithmetic number, because the mean of its divisors is an integer number (15679801087200).

Almost surely, 2^{636045325266051} is an apocalyptic number.

636045325266051 is a deficient number, since it is larger than the sum of its proper divisors (367461944314749).

636045325266051 is a wasteful number, since it uses less digits than its factorization.

636045325266051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8491225 (or 8491219 counting only the distinct ones).

The product of its (nonzero) digits is 23328000, while the sum is 54.

The spelling of 636045325266051 in words is "six hundred thirty-six trillion, forty-five billion, three hundred twenty-five million, two hundred sixty-six thousand, fifty-one".