20122174345663 has 8 divisors (see below), whose sum is σ = 21739267250288. Its totient is φ = 18514971918144.

The previous prime is 20122174345571. The next prime is 20122174345681. The reversal of 20122174345663 is 36654347122102.

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

It is a de Polignac number, because none of the positive numbers 2^k-20122174345663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122174345363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2472615045 + ... + 2472623182.

It is an arithmetic number, because the mean of its divisors is an integer number (2717408406286).

Almost surely, 2^{20122174345663} is an apocalyptic number.

20122174345663 is a deficient number, since it is larger than the sum of its proper divisors (1617092904625).

20122174345663 is a wasteful number, since it uses less digits than its factorization.

20122174345663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4945238553.

The product of its (nonzero) digits is 1451520, while the sum is 46.

The spelling of 20122174345663 in words is "twenty trillion, one hundred twenty-two billion, one hundred seventy-four million, three hundred forty-five thousand, six hundred sixty-three".