20126517700170 has 128 divisors (see below), whose sum is σ = 57302666749440. Its totient is φ = 4426554424320.

The previous prime is 20126517700129. The next prime is 20126517700183. The reversal of 20126517700170 is 7100771562102.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3855301 + ... + 7424040.

It is an arithmetic number, because the mean of its divisors is an integer number (447677083980).

Almost surely, 2^{20126517700170} is an apocalyptic number.

20126517700170 is an abundant number, since it is smaller than the sum of its proper divisors (37176149049270).

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

20126517700170 is a wasteful number, since it uses less digits than its factorization.

20126517700170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11279680.

The product of its (nonzero) digits is 41160, while the sum is 39.

The spelling of 20126517700170 in words is "twenty trillion, one hundred twenty-six billion, five hundred seventeen million, seven hundred thousand, one hundred seventy".