158264489985 has 16 divisors (see below), whose sum is σ = 289397924736. Its totient is φ = 72349481088.

The previous prime is 158264489927. The next prime is 158264489987. The reversal of 158264489985 is 589984462851.

It is not a de Polignac number, because 158264489985 - 2⁶ = 158264489921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158264489987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 753640324 + ... + 753640533.

It is an arithmetic number, because the mean of its divisors is an integer number (18087370296).

Almost surely, 2^158264489985 is an apocalyptic number.

158264489985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

158264489985 is a deficient number, since it is larger than the sum of its proper divisors (131133434751).

158264489985 is a wasteful number, since it uses less digits than its factorization.

158264489985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507280872.

The product of its digits is 199065600, while the sum is 69.

The spelling of 158264489985 in words is "one hundred fifty-eight billion, two hundred sixty-four million, four hundred eighty-nine thousand, nine hundred eighty-five".