20920304366 has 16 divisors (see below), whose sum is σ = 34618591728. Its totient is φ = 9420024000.

The previous prime is 20920304359. The next prime is 20920304387. The reversal of 20920304366 is 66340302902.

It is a congruent number.

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, 9811460 + ... + 9813591.

It is an arithmetic number, because the mean of its divisors is an integer number (2163661983).

Almost surely, 2^20920304366 is an apocalyptic number.

20920304366 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20920304366 is a deficient number, since it is larger than the sum of its proper divisors (13698287362).

20920304366 is a wasteful number, since it uses less digits than its factorization.

20920304366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19625107.

The product of its (nonzero) digits is 46656, while the sum is 35.

The spelling of 20920304366 in words is "twenty billion, nine hundred twenty million, three hundred four thousand, three hundred sixty-six".