2191024168086 has 16 divisors (see below), whose sum is σ = 4719128977584. Its totient is φ = 674161282464.

The previous prime is 2191024168049. The next prime is 2191024168097. The reversal of 2191024168086 is 6808614201912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14045026641 + ... + 14045026796.

It is an arithmetic number, because the mean of its divisors is an integer number (294945561099).

Almost surely, 2^{2191024168086} is an apocalyptic number.

2191024168086 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2191024168086 is an abundant number, since it is smaller than the sum of its proper divisors (2528104809498).

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

2191024168086 is a wasteful number, since it uses less digits than its factorization.

2191024168086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28090053455.

The product of its (nonzero) digits is 331776, while the sum is 48.

Adding to 2191024168086 its reverse (6808614201912), we get a palindrome (8999638369998).

The spelling of 2191024168086 in words is "two trillion, one hundred ninety-one billion, twenty-four million, one hundred sixty-eight thousand, eighty-six".