20457116266355 has 8 divisors (see below), whose sum is σ = 24786874855392. Its totient is φ = 16206802789248.

The previous prime is 20457116266313. The next prime is 20457116266421. The reversal of 20457116266355 is 55366261175402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20457116266355 - 2⁸ = 20457116266099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20457116266297 and 20457116266306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19861277414 + ... + 19861278443.

It is an arithmetic number, because the mean of its divisors is an integer number (3098359356924).

Almost surely, 2^{20457116266355} is an apocalyptic number.

20457116266355 is a deficient number, since it is larger than the sum of its proper divisors (4329758589037).

20457116266355 is a wasteful number, since it uses less digits than its factorization.

20457116266355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39722555965.

The product of its (nonzero) digits is 9072000, while the sum is 53.

The spelling of 20457116266355 in words is "twenty trillion, four hundred fifty-seven billion, one hundred sixteen million, two hundred sixty-six thousand, three hundred fifty-five".