20636179561160 has 64 divisors (see below), whose sum is σ = 46701948368880. Its totient is φ = 8206379458560.

The previous prime is 20636179561141. The next prime is 20636179561163. The reversal of 20636179561160 is 6116597163602.

It can be written as a sum of positive squares in 8 ways, for example, as 15080438289316 + 5555741271844 = 3883354^2 + 2357062^2 .

It is not an unprimeable number, because it can be changed into a prime (20636179561163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186459440 + ... + 186570080.

Almost surely, 2^{20636179561160} is an apocalyptic number.

20636179561160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20636179561160 is an abundant number, since it is smaller than the sum of its proper divisors (26065768807720).

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

20636179561160 is a wasteful number, since it uses less digits than its factorization.

20636179561160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137778 (or 137774 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 53.

The spelling of 20636179561160 in words is "twenty trillion, six hundred thirty-six billion, one hundred seventy-nine million, five hundred sixty-one thousand, one hundred sixty".