158690880 has 112 divisors (see below), whose sum is σ = 559856640. Its totient is φ = 42315264.

The previous prime is 158690867. The next prime is 158690881. The reversal of 158690880 is 88096851.

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 (158690881) 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 15 ways as a sum of consecutive naturals, for example, 544 + ... + 17823.

It is an arithmetic number, because the mean of its divisors is an integer number (4998720).

Almost surely, 2^158690880 is an apocalyptic number.

158690880 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 158690880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279928320).

158690880 is an abundant number, since it is smaller than the sum of its proper divisors (401165760).

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

158690880 is a wasteful number, since it uses less digits than its factorization.

158690880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18393 (or 18377 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 158690880 is about 12597.2568442499. The cubic root of 158690880 is about 541.3988423772.

The spelling of 158690880 in words is "one hundred fifty-eight million, six hundred ninety thousand, eight hundred eighty".