2158231716808 has 16 divisors (see below), whose sum is σ = 4057956576000. Its totient is φ = 1076109963216.

The previous prime is 2158231716769. The next prime is 2158231716899. The reversal of 2158231716808 is 8086171328512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375733848 + ... + 375739591.

It is an arithmetic number, because the mean of its divisors is an integer number (253622286000).

Almost surely, 2^{2158231716808} is an apocalyptic number.

It is an amenable number.

2158231716808 is a deficient number, since it is larger than the sum of its proper divisors (1899724859192).

2158231716808 is a wasteful number, since it uses less digits than its factorization.

2158231716808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751473804 (or 751473800 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 52.

The spelling of 2158231716808 in words is "two trillion, one hundred fifty-eight billion, two hundred thirty-one million, seven hundred sixteen thousand, eight hundred eight".