20404582495 has 16 divisors (see below), whose sum is σ = 26715197088. Its totient is φ = 14837616640.

The previous prime is 20404582493. The next prime is 20404582501. The reversal of 20404582495 is 59428540402.

It is not a de Polignac number, because 20404582495 - 2¹ = 20404582493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20404582493) 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, 447807 + ... + 491263.

It is an arithmetic number, because the mean of its divisors is an integer number (1669699818).

Almost surely, 2^20404582495 is an apocalyptic number.

20404582495 is a deficient number, since it is larger than the sum of its proper divisors (6310614593).

20404582495 is a wasteful number, since it uses less digits than its factorization.

20404582495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52010.

The product of its (nonzero) digits is 460800, while the sum is 43.

The spelling of 20404582495 in words is "twenty billion, four hundred four million, five hundred eighty-two thousand, four hundred ninety-five".