20322625465 has 4 divisors (see below), whose sum is σ = 24387150564. Its totient is φ = 16258100368.

The previous prime is 20322625451. The next prime is 20322625493. The reversal of 20322625465 is 56452622302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8077875129 + 12244750336 = 89877^2 + 110656^2 .

It is a cyclic number.

It is not a de Polignac number, because 20322625465 - 2⁹ = 20322624953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2032262542 + ... + 2032262551.

It is an arithmetic number, because the mean of its divisors is an integer number (6096787641).

Almost surely, 2^20322625465 is an apocalyptic number.

It is an amenable number.

20322625465 is a deficient number, since it is larger than the sum of its proper divisors (4064525099).

20322625465 is an equidigital number, since it uses as much as digits as its factorization.

20322625465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4064525098.

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 20322625465 in words is "twenty billion, three hundred twenty-two million, six hundred twenty-five thousand, four hundred sixty-five".