20264545969 has 16 divisors (see below), whose sum is σ = 21555668160. Its totient is φ = 18996120000.

The previous prime is 20264545949. The next prime is 20264545997. The reversal of 20264545969 is 96954546202.

It is a cyclic number.

It is not a de Polignac number, because 20264545969 - 2¹⁵ = 20264513201 is a prime.

It is a super-2 number, since 2×20264545969² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20264545949) 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, 5488414 + ... + 5492104.

It is an arithmetic number, because the mean of its divisors is an integer number (1347229260).

Almost surely, 2^20264545969 is an apocalyptic number.

It is an amenable number.

20264545969 is a deficient number, since it is larger than the sum of its proper divisors (1291122191).

20264545969 is a wasteful number, since it uses less digits than its factorization.

20264545969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6672.

The product of its (nonzero) digits is 4665600, while the sum is 52.

The spelling of 20264545969 in words is "twenty billion, two hundred sixty-four million, five hundred forty-five thousand, nine hundred sixty-nine".