20106126170 has 64 divisors (see below), whose sum is σ = 39634751520. Its totient is φ = 7299072000.

The previous prime is 20106126169. The next prime is 20106126181. The reversal of 20106126170 is 7162160102.

It can be written as a sum of positive squares in 16 ways, for example, as 1083923929 + 19022202241 = 32923^2 + 137921^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2089370 + ... + 2098970.

Almost surely, 2^20106126170 is an apocalyptic number.

20106126170 is a deficient number, since it is larger than the sum of its proper divisors (19528625350).

20106126170 is a wasteful number, since it uses less digits than its factorization.

20106126170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9891.

The product of its (nonzero) digits is 1008, while the sum is 26.

Adding to 20106126170 its reverse (7162160102), we get a palindrome (27268286272).

The spelling of 20106126170 in words is "twenty billion, one hundred six million, one hundred twenty-six thousand, one hundred seventy".