20445024022464 has 56 divisors (see below), whose sum is σ = 54572835197520. Its totient is φ = 6754698194944.

The previous prime is 20445024022429. The next prime is 20445024022517. The reversal of 20445024022464 is 46422042054402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471148659 + ... + 471192050.

Almost surely, 2^{20445024022464} is an apocalyptic number.

20445024022464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20445024022464 is an abundant number, since it is smaller than the sum of its proper divisors (34127811175056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20445024022464 is a wasteful number, since it uses less digits than its factorization.

20445024022464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942340837 (or 942340827 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 39.

Adding to 20445024022464 its reverse (46422042054402), we get a palindrome (66867066076866).

The spelling of 20445024022464 in words is "twenty trillion, four hundred forty-five billion, twenty-four million, twenty-two thousand, four hundred sixty-four".