20020022464 has 28 divisors (see below), whose sum is σ = 42783174784. Its totient is φ = 9240009984.

The previous prime is 20020022461. The next prime is 20020022501. The reversal of 20020022464 is 46422002002.

It is not an unprimeable number, because it can be changed into a prime (20020022461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12030432 + ... + 12032095.

It is an arithmetic number, because the mean of its divisors is an integer number (1527970528).

Almost surely, 2^20020022464 is an apocalyptic number.

It is an amenable number.

20020022464 is an abundant number, since it is smaller than the sum of its proper divisors (22763152320).

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

20020022464 is a wasteful number, since it uses less digits than its factorization.

20020022464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24062552 (or 24062542 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 20020022464 its reverse (46422002002), we get a palindrome (66442024466).

The spelling of 20020022464 in words is "twenty billion, twenty million, twenty-two thousand, four hundred sixty-four".