20220646404 has 24 divisors (see below), whose sum is σ = 53921723968. Its totient is φ = 5777327520.

The previous prime is 20220646403. The next prime is 20220646417. The reversal of 20220646404 is 40464602202.

It is not an unprimeable number, because it can be changed into a prime (20220646403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120360907 + ... + 120361074.

Almost surely, 2^20220646404 is an apocalyptic number.

It is an amenable number.

20220646404 is an abundant number, since it is smaller than the sum of its proper divisors (33701077564).

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

20220646404 is a wasteful number, since it uses less digits than its factorization.

20220646404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240721995 (or 240721993 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The spelling of 20220646404 in words is "twenty billion, two hundred twenty million, six hundred forty-six thousand, four hundred four".