2085331198164 has 12 divisors (see below), whose sum is σ = 4865772795744. Its totient is φ = 695110399384.

The previous prime is 2085331198151. The next prime is 2085331198169. The reversal of 2085331198164 is 4618911335802.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2085331198164² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2085331198169) 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, 86888799912 + ... + 86888799935.

It is an arithmetic number, because the mean of its divisors is an integer number (405481066312).

Almost surely, 2^{2085331198164} is an apocalyptic number.

It is an amenable number.

2085331198164 is an abundant number, since it is smaller than the sum of its proper divisors (2780441597580).

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

2085331198164 is a wasteful number, since it uses less digits than its factorization.

2085331198164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173777599854 (or 173777599852 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 2085331198164 in words is "two trillion, eighty-five billion, three hundred thirty-one million, one hundred ninety-eight thousand, one hundred sixty-four".