20394463356 has 36 divisors (see below), whose sum is σ = 52205244000. Its totient is φ = 6712100928.

The previous prime is 20394463343. The next prime is 20394463379. The reversal of 20394463356 is 65336449302.

20394463356 is a `hidden beast` number, since 2 + 0 + 3 + 9 + 4 + 4 + 633 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3582681 + ... + 3588368.

Almost surely, 2^20394463356 is an apocalyptic number.

It is an amenable number.

20394463356 is an abundant number, since it is smaller than the sum of its proper divisors (31810780644).

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

20394463356 is a wasteful number, since it uses less digits than its factorization.

20394463356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7171138 (or 7171133 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 45.

The spelling of 20394463356 in words is "twenty billion, three hundred ninety-four million, four hundred sixty-three thousand, three hundred fifty-six".