2158042588855 has 16 divisors (see below), whose sum is σ = 2605801897440. Its totient is φ = 1715669019648.

The previous prime is 2158042588847. The next prime is 2158042588873. The reversal of 2158042588855 is 5588852408512.

It is a cyclic number.

It is not a de Polignac number, because 2158042588855 - 2³ = 2158042588847 is a prime.

It is a super-2 number, since 2×2158042588855² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2158042588793 and 2158042588802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8256859 + ... + 8514211.

It is an arithmetic number, because the mean of its divisors is an integer number (162862618590).

Almost surely, 2^{2158042588855} is an apocalyptic number.

2158042588855 is a deficient number, since it is larger than the sum of its proper divisors (447759308585).

2158042588855 is a wasteful number, since it uses less digits than its factorization.

2158042588855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267810.

The product of its (nonzero) digits is 40960000, while the sum is 61.

The spelling of 2158042588855 in words is "two trillion, one hundred fifty-eight billion, forty-two million, five hundred eighty-eight thousand, eight hundred fifty-five".