20117214371737 has 4 divisors (see below), whose sum is σ = 22991102139136. Its totient is φ = 17243326604340.

The previous prime is 20117214371711. The next prime is 20117214371741. The reversal of 20117214371737 is 73717341271102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20117214371737 - 2³⁹ = 19567458557849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20117214371797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1436943883689 + ... + 1436943883702.

It is an arithmetic number, because the mean of its divisors is an integer number (5747775534784).

Almost surely, 2^{20117214371737} is an apocalyptic number.

It is an amenable number.

20117214371737 is a deficient number, since it is larger than the sum of its proper divisors (2873887767399).

20117214371737 is an equidigital number, since it uses as much as digits as its factorization.

20117214371737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873887767398.

The product of its (nonzero) digits is 345744, while the sum is 46.

The spelling of 20117214371737 in words is "twenty trillion, one hundred seventeen billion, two hundred fourteen million, three hundred seventy-one thousand, seven hundred thirty-seven".