158660 has 12 divisors (see below), whose sum is σ = 333228. Its totient is φ = 63456.

The previous prime is 158657. The next prime is 158663. The reversal of 158660 is 66851.

158660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (158657) and next prime (158663).

It can be written as a sum of positive squares in 2 ways, for example, as 51076 + 107584 = 226^2 + 328^2 .

It is not an unprimeable number, because it can be changed into a prime (158663) 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, 3947 + ... + 3986.

It is an arithmetic number, because the mean of its divisors is an integer number (27769).

2¹⁵⁸⁶⁶⁰ is an apocalyptic number.

158660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158660 is an abundant number, since it is smaller than the sum of its proper divisors (174568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158660 is a wasteful number, since it uses less digits than its factorization.

158660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7942 (or 7940 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 158660 is about 398.3214782057. The cubic root of 158660 is about 54.1363722777.

Subtracting from 158660 its reverse (66851), we obtain a square (91809 = 303²).

It can be divided in two parts, 158 and 660, that added together give a palindrome (818).

The spelling of 158660 in words is "one hundred fifty-eight thousand, six hundred sixty".