20117553335466 has 16 divisors (see below), whose sum is σ = 40236799854144. Its totient is φ = 6705568914624.

The previous prime is 20117553335449. The next prime is 20117553335483. The reversal of 20117553335466 is 66453335571102.

It is an interprime number because it is at equal distance from previous prime (20117553335449) and next prime (20117553335483).

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, 70394815 + ... + 70680018.

It is an arithmetic number, because the mean of its divisors is an integer number (2514799990884).

Almost surely, 2^{20117553335466} is an apocalyptic number.

20117553335466 is an abundant number, since it is smaller than the sum of its proper divisors (20119246518678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20117553335466 is a wasteful number, since it uses less digits than its factorization.

20117553335466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141098605.

The product of its (nonzero) digits is 6804000, while the sum is 51.

The spelling of 20117553335466 in words is "twenty trillion, one hundred seventeen billion, five hundred fifty-three million, three hundred thirty-five thousand, four hundred sixty-six".