20126031661100 has 36 divisors (see below), whose sum is σ = 43676972218824. Its totient is φ = 8049770542080.

The previous prime is 20126031661097. The next prime is 20126031661139. The reversal of 20126031661100 is 116613062102.

It is a happy 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, 6765557 + ... + 9274956.

Almost surely, 2^{20126031661100} is an apocalyptic number.

20126031661100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20126031661100 is an abundant number, since it is smaller than the sum of its proper divisors (23550940557724).

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

20126031661100 is a wasteful number, since it uses less digits than its factorization.

20126031661100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16053074 (or 16053067 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 20126031661100 in words is "twenty trillion, one hundred twenty-six billion, thirty-one million, six hundred sixty-one thousand, one hundred".