2158533323318 has 16 divisors (see below), whose sum is σ = 3247129210896. Its totient is φ = 1076159001600.

The previous prime is 2158533323281. The next prime is 2158533323329. The reversal of 2158533323318 is 8133233358512.

It is a super-2 number, since 2×2158533323318² (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 7 ways as a sum of consecutive naturals, for example, 1560605 + ... + 2598567.

It is an arithmetic number, because the mean of its divisors is an integer number (202945575681).

Almost surely, 2^{2158533323318} is an apocalyptic number.

2158533323318 is a deficient number, since it is larger than the sum of its proper divisors (1088595887578).

2158533323318 is a wasteful number, since it uses less digits than its factorization.

2158533323318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040959.

The product of its digits is 1555200, while the sum is 47.

The spelling of 2158533323318 in words is "two trillion, one hundred fifty-eight billion, five hundred thirty-three million, three hundred twenty-three thousand, three hundred eighteen".