20354945404 has 12 divisors (see below), whose sum is σ = 37495952200. Its totient is φ = 9641816208.

The previous prime is 20354945381. The next prime is 20354945407. The reversal of 20354945404 is 40454945302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20354945407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133914039 + ... + 133914190.

Almost surely, 2^20354945404 is an apocalyptic number.

It is an amenable number.

20354945404 is a deficient number, since it is larger than the sum of its proper divisors (17141006796).

20354945404 is a wasteful number, since it uses less digits than its factorization.

20354945404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267828252 (or 267828250 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 20354945404 in words is "twenty billion, three hundred fifty-four million, nine hundred forty-five thousand, four hundred four".