20624406023 has 16 divisors (see below), whose sum is σ = 22884239616. Its totient is φ = 18464060160.

The previous prime is 20624406017. The next prime is 20624406031. The reversal of 20624406023 is 32060442602.

It is not a de Polignac number, because 20624406023 - 2⁶ = 20624405959 is a prime.

It is a super-2 number, since 2×20624406023² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20624406053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82058 + ... + 219048.

It is an arithmetic number, because the mean of its divisors is an integer number (1430264976).

Almost surely, 2^20624406023 is an apocalyptic number.

20624406023 is a deficient number, since it is larger than the sum of its proper divisors (2259833593).

20624406023 is a wasteful number, since it uses less digits than its factorization.

20624406023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137354.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 20624406023 its reverse (32060442602), we get a palindrome (52684848625).

The spelling of 20624406023 in words is "twenty billion, six hundred twenty-four million, four hundred six thousand, twenty-three".