2158351372680 has 128 divisors (see below), whose sum is σ = 6565002825600. Its totient is φ = 567567931392.

The previous prime is 2158351372651. The next prime is 2158351372721. The reversal of 2158351372680 is 862731538512.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52793607 + ... + 52834473.

It is an arithmetic number, because the mean of its divisors is an integer number (51289084575).

Almost surely, 2^{2158351372680} is an apocalyptic number.

2158351372680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2158351372680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3282501412800).

2158351372680 is an abundant number, since it is smaller than the sum of its proper divisors (4406651452920).

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

2158351372680 is a wasteful number, since it uses less digits than its factorization.

2158351372680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46983 (or 46979 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 2158351372680 in words is "two trillion, one hundred fifty-eight billion, three hundred fifty-one million, three hundred seventy-two thousand, six hundred eighty".