158865937907 has 32 divisors (see below), whose sum is σ = 178718238720. Its totient is φ = 140334405120.

The previous prime is 158865937897. The next prime is 158865937913. The reversal of 158865937907 is 709739568851.

It is a cyclic number.

It is not a de Polignac number, because 158865937907 - 2¹⁴ = 158865921523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158865930907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15192893 + ... + 15203345.

It is an arithmetic number, because the mean of its divisors is an integer number (5584944960).

Almost surely, 2^158865937907 is an apocalyptic number.

158865937907 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

158865937907 is a deficient number, since it is larger than the sum of its proper divisors (19852300813).

158865937907 is a wasteful number, since it uses less digits than its factorization.

158865937907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10923.

The product of its (nonzero) digits is 114307200, while the sum is 68.

The spelling of 158865937907 in words is "one hundred fifty-eight billion, eight hundred sixty-five million, nine hundred thirty-seven thousand, nine hundred seven".