20330122180891 has 8 divisors (see below), whose sum is σ = 20677067385840. Its totient is φ = 19983255871488.

The previous prime is 20330122180889. The next prime is 20330122180903. The reversal of 20330122180891 is 19808122103302.

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 20330122180891 - 2¹ = 20330122180889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20330122180091) 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, 19204006 + ... + 20234971.

It is an arithmetic number, because the mean of its divisors is an integer number (2584633423230).

Almost surely, 2^{20330122180891} is an apocalyptic number.

20330122180891 is a deficient number, since it is larger than the sum of its proper divisors (346945204949).

20330122180891 is an equidigital number, since it uses as much as digits as its factorization.

20330122180891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39447773.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 20330122180891 in words is "twenty trillion, three hundred thirty billion, one hundred twenty-two million, one hundred eighty thousand, eight hundred ninety-one".