20045064575 has 12 divisors (see below), whose sum is σ = 25083919080. Its totient is φ = 15888929760.

The previous prime is 20045064527. The next prime is 20045064577. The reversal of 20045064575 is 57546054002.

It is not a de Polignac number, because 20045064575 - 2⁶ = 20045064511 is a prime.

It is a super-2 number, since 2×20045064575² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045064577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3675269 + ... + 3680718.

It is an arithmetic number, because the mean of its divisors is an integer number (2090326590).

Almost surely, 2^20045064575 is an apocalyptic number.

20045064575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20045064575 is a deficient number, since it is larger than the sum of its proper divisors (5038854505).

20045064575 is a wasteful number, since it uses less digits than its factorization.

20045064575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7356106 (or 7356101 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 38.

The spelling of 20045064575 in words is "twenty billion, forty-five million, sixty-four thousand, five hundred seventy-five".