20126657017475 has 48 divisors (see below), whose sum is σ = 26535812521920. Its totient is φ = 15114307622400.

The previous prime is 20126657017409. The next prime is 20126657017483. The reversal of 20126657017475 is 57471075662102.

It is not a de Polignac number, because 20126657017475 - 2¹⁴ = 20126657001091 is a prime.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 34665065 + ... + 35240885.

It is an arithmetic number, because the mean of its divisors is an integer number (552829427540).

Almost surely, 2^{20126657017475} is an apocalyptic number.

20126657017475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20126657017475 is a deficient number, since it is larger than the sum of its proper divisors (6409155504445).

20126657017475 is a wasteful number, since it uses less digits than its factorization.

20126657017475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577200 (or 577195 counting only the distinct ones).

The product of its (nonzero) digits is 4939200, while the sum is 53.

The spelling of 20126657017475 in words is "twenty trillion, one hundred twenty-six billion, six hundred fifty-seven million, seventeen thousand, four hundred seventy-five".