158766660 has 144 divisors (see below), whose sum is σ = 546087360. Its totient is φ = 37013760.

The previous prime is 158766659. The next prime is 158766661. The reversal of 158766660 is 66667851.

It is an interprime number because it is at equal distance from previous prime (158766659) and next prime (158766661).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (158766661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42675 + ... + 46245.

Almost surely, 2^158766660 is an apocalyptic number.

158766660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158766660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273043680).

158766660 is an abundant number, since it is smaller than the sum of its proper divisors (387320700).

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

158766660 is a wasteful number, since it uses less digits than its factorization.

158766660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3618 (or 3613 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 158766660 is about 12600.2642829426. The cubic root of 158766660 is about 541.4850071176.

The spelling of 158766660 in words is "one hundred fifty-eight million, seven hundred sixty-six thousand, six hundred sixty".