20626644004402 has 16 divisors (see below), whose sum is σ = 30949356672000. Its totient is φ = 10310192101440.

The previous prime is 20626644004387. The next prime is 20626644004427. The reversal of 20626644004402 is 20440044662602.

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, 148914474 + ... + 149052922.

It is an arithmetic number, because the mean of its divisors is an integer number (1934334792000).

Almost surely, 2^{20626644004402} is an apocalyptic number.

20626644004402 is a deficient number, since it is larger than the sum of its proper divisors (10322712667598).

20626644004402 is a wasteful number, since it uses less digits than its factorization.

20626644004402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160521.

The product of its (nonzero) digits is 442368, while the sum is 40.

The spelling of 20626644004402 in words is "twenty trillion, six hundred twenty-six billion, six hundred forty-four million, four thousand, four hundred two".