20623433626 has 16 divisors (see below), whose sum is σ = 31867259040. Its totient is φ = 10002698640.

The previous prime is 20623433569. The next prime is 20623433629. The reversal of 20623433626 is 62633432602.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (20623433629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396496 + ... + 445483.

It is an arithmetic number, because the mean of its divisors is an integer number (1991703690).

Almost surely, 2^20623433626 is an apocalyptic number.

20623433626 is a deficient number, since it is larger than the sum of its proper divisors (11243825414).

20623433626 is a wasteful number, since it uses less digits than its factorization.

20623433626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842349.

The product of its (nonzero) digits is 186624, while the sum is 37.

The spelling of 20623433626 in words is "twenty billion, six hundred twenty-three million, four hundred thirty-three thousand, six hundred twenty-six".