20003561277160 has 16 divisors (see below), whose sum is σ = 45008012873700. Its totient is φ = 8001424510848.

The previous prime is 20003561277149. The next prime is 20003561277179. The reversal of 20003561277160 is 6177216530002.

It can be written as a sum of positive squares in 2 ways, for example, as 19587404686756 + 416156590404 = 4425766^2 + 645102^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 500089031929 = 20003561277160 / (2 + 0 + 0 + 0 + 3 + 5 + 6 + 1 + 2 + 7 + 7 + 1 + 6 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250044515925 + ... + 250044516004.

Almost surely, 2^{20003561277160} is an apocalyptic number.

20003561277160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20003561277160 is an abundant number, since it is smaller than the sum of its proper divisors (25004451596540).

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

20003561277160 is a wasteful number, since it uses less digits than its factorization.

20003561277160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500089031940 (or 500089031936 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 20003561277160 in words is "twenty trillion, three billion, five hundred sixty-one million, two hundred seventy-seven thousand, one hundred sixty".