20008319440356 has 81 divisors (see below), whose sum is σ = 54767316561321. Its totient is φ = 6156298628064.

The previous prime is 20008319440337. The next prime is 20008319440387. The reversal of 20008319440356 is 65304491380002.

The square root of 20008319440356 is 4473066.

It is a perfect power (a square), and thus also a powerful number.

20008319440356 is a `hidden beast` number, since 2 + 0 + 0 + 0 + 8 + 3 + 194 + 403 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2959810568100 + 17048508872256 = 1720410^2 + 4128984^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 348870475 + ... + 348927821.

Almost surely, 2^{20008319440356} is an apocalyptic number.

20008319440356 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20008319440356 is the 4473066-th square number.

It is an amenable number.

20008319440356 is an abundant number, since it is smaller than the sum of its proper divisors (34758997120965).

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

20008319440356 is an frugal number, since it uses more digits than its factorization.

20008319440356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114730 (or 57365 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 20008319440356 in words is "twenty trillion, eight billion, three hundred nineteen million, four hundred forty thousand, three hundred fifty-six".