158753642091 has 64 divisors (see below), whose sum is σ = 239797297152. Its totient is φ = 93357792000.

The previous prime is 158753642081. The next prime is 158753642101. The reversal of 158753642091 is 190246357851.

It is an interprime number because it is at equal distance from previous prime (158753642081) and next prime (158753642101).

It is not a de Polignac number, because 158753642091 - 2¹⁸ = 158753379947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158753642041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31266645 + ... + 31271721.

It is an arithmetic number, because the mean of its divisors is an integer number (3746832768).

It is a 1-persistent number, because it is pandigital, but 2⋅158753642091 = 317507284182 is not.

Almost surely, 2^158753642091 is an apocalyptic number.

158753642091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

158753642091 is a deficient number, since it is larger than the sum of its proper divisors (81043655061).

158753642091 is a wasteful number, since it uses less digits than its factorization.

158753642091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5345 (or 5323 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 158753642091 in words is "one hundred fifty-eight billion, seven hundred fifty-three million, six hundred forty-two thousand, ninety-one".