20404064642244 has 24 divisors (see below), whose sum is σ = 47929010908800. Its totient is φ = 6755708203104.

The previous prime is 20404064642113. The next prime is 20404064642261. The reversal of 20404064642244 is 44224646040402.

It is a junction number, because it is equal to n+sod(n) for n = 20404064642196 and 20404064642205.

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, 5705832844 + ... + 5705836419.

It is an arithmetic number, because the mean of its divisors is an integer number (1997042121200).

Almost surely, 2^{20404064642244} is an apocalyptic number.

It is an amenable number.

20404064642244 is an abundant number, since it is smaller than the sum of its proper divisors (27524946266556).

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

20404064642244 is a wasteful number, since it uses less digits than its factorization.

20404064642244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11411669419 (or 11411669417 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 42.

The spelling of 20404064642244 in words is "twenty trillion, four hundred four billion, sixty-four million, six hundred forty-two thousand, two hundred forty-four".