158158160985 has 128 divisors (see below), whose sum is σ = 290285420544. Its totient is φ = 72857640960.

The previous prime is 158158160983. The next prime is 158158160987. The reversal of 158158160985 is 589061851851.

It is an interprime number because it is at equal distance from previous prime (158158160983) and next prime (158158160987).

It is not a de Polignac number, because 158158160985 - 2¹ = 158158160983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158158160983) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 39866472 + ... + 39870438.

It is an arithmetic number, because the mean of its divisors is an integer number (2267854848).

Almost surely, 2^158158160985 is an apocalyptic number.

158158160985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

158158160985 is a deficient number, since it is larger than the sum of its proper divisors (132127259559).

158158160985 is a wasteful number, since it uses less digits than its factorization.

158158160985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4183.

The product of its (nonzero) digits is 3456000, while the sum is 57.

The spelling of 158158160985 in words is "one hundred fifty-eight billion, one hundred fifty-eight million, one hundred sixty thousand, nine hundred eighty-five".