20126261770120 has 64 divisors (see below), whose sum is σ = 49837999904640. Its totient is φ = 7253873894400.

The previous prime is 20126261770093. The next prime is 20126261770159. The reversal of 20126261770120 is 2107716262102.

It is a self number, because there is not a number n which added to its sum of digits gives 20126261770120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202346316 + ... + 202445755.

It is an arithmetic number, because the mean of its divisors is an integer number (778718748510).

Almost surely, 2^{20126261770120} is an apocalyptic number.

20126261770120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20126261770120 is an abundant number, since it is smaller than the sum of its proper divisors (29711738134520).

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

20126261770120 is a wasteful number, since it uses less digits than its factorization.

20126261770120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404792206 (or 404792202 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The spelling of 20126261770120 in words is "twenty trillion, one hundred twenty-six billion, two hundred sixty-one million, seven hundred seventy thousand, one hundred twenty".