20146645026255 has 16 divisors (see below), whose sum is σ = 35165053137024. Its totient is φ = 9768070315680.

The previous prime is 20146645026247. The next prime is 20146645026257. The reversal of 20146645026255 is 55262054664102.

It is not a de Polignac number, because 20146645026255 - 2³ = 20146645026247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20146645026257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61050439309 + ... + 61050439638.

It is an arithmetic number, because the mean of its divisors is an integer number (2197815821064).

Almost surely, 2^{20146645026255} is an apocalyptic number.

20146645026255 is a deficient number, since it is larger than the sum of its proper divisors (15018408110769).

20146645026255 is a wasteful number, since it uses less digits than its factorization.

20146645026255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122100878966.

The product of its (nonzero) digits is 3456000, while the sum is 48.

The spelling of 20146645026255 in words is "twenty trillion, one hundred forty-six billion, six hundred forty-five million, twenty-six thousand, two hundred fifty-five".