2190955845912 has 16 divisors (see below), whose sum is σ = 5477389614840. Its totient is φ = 730318615296.

The previous prime is 2190955845839. The next prime is 2190955845943. The reversal of 2190955845912 is 2195485590912.

It is a super-2 number, since 2×2190955845912² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45644913433 + ... + 45644913480.

Almost surely, 2^{2190955845912} is an apocalyptic number.

It is an amenable number.

2190955845912 is an abundant number, since it is smaller than the sum of its proper divisors (3286433768928).

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

2190955845912 is a wasteful number, since it uses less digits than its factorization.

2190955845912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91289826922 (or 91289826918 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 60.

The spelling of 2190955845912 in words is "two trillion, one hundred ninety billion, nine hundred fifty-five million, eight hundred forty-five thousand, nine hundred twelve".