1155782058158 has 48 divisors (see below), whose sum is σ = 2173072487040. Its totient is φ = 456975981504.

The previous prime is 1155782058149. The next prime is 1155782058161. The reversal of 1155782058158 is 8518502875511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2025635 + ... + 2532737.

It is an arithmetic number, because the mean of its divisors is an integer number (45272343480).

Almost surely, 2^{1155782058158} is an apocalyptic number.

1155782058158 is a deficient number, since it is larger than the sum of its proper divisors (1017290428882).

1155782058158 is a wasteful number, since it uses less digits than its factorization.

1155782058158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508921 (or 508914 counting only the distinct ones).

The product of its (nonzero) digits is 4480000, while the sum is 56.

The spelling of 1155782058158 in words is "one trillion, one hundred fifty-five billion, seven hundred eighty-two million, fifty-eight thousand, one hundred fifty-eight".