20126455177417 has 16 divisors (see below), whose sum is σ = 21005565252480. Its totient is φ = 19259698528000.

The previous prime is 20126455177403. The next prime is 20126455177421. The reversal of 20126455177417 is 71477155462102.

It is a cyclic number.

It is not a de Polignac number, because 20126455177417 - 2⁷ = 20126455177289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20126455177447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92141742 + ... + 92359912.

It is an arithmetic number, because the mean of its divisors is an integer number (1312847828280).

Almost surely, 2^{20126455177417} is an apocalyptic number.

It is an amenable number.

20126455177417 is a deficient number, since it is larger than the sum of its proper divisors (879110075063).

20126455177417 is a wasteful number, since it uses less digits than its factorization.

20126455177417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246464.

The product of its (nonzero) digits is 3292800, while the sum is 52.

The spelling of 20126455177417 in words is "twenty trillion, one hundred twenty-six billion, four hundred fifty-five million, one hundred seventy-seven thousand, four hundred seventeen".