1158177122087 has 4 divisors (see below), whose sum is σ = 1160150167176. Its totient is φ = 1156204077000.

The previous prime is 1158177122041. The next prime is 1158177122129. The reversal of 1158177122087 is 7802217718511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1158177122087 - 2²⁴ = 1158160344871 is a prime.

It is a super-2 number, since 2×1158177122087² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158177122387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 986521664 + ... + 986522837.

It is an arithmetic number, because the mean of its divisors is an integer number (290037541794).

Almost surely, 2^{1158177122087} is an apocalyptic number.

1158177122087 is a deficient number, since it is larger than the sum of its proper divisors (1973045089).

1158177122087 is an equidigital number, since it uses as much as digits as its factorization.

1158177122087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973045088.

The product of its (nonzero) digits is 439040, while the sum is 50.

The spelling of 1158177122087 in words is "one trillion, one hundred fifty-eight billion, one hundred seventy-seven million, one hundred twenty-two thousand, eighty-seven".