158166372 has 96 divisors (see below), whose sum is σ = 456865024. Its totient is φ = 41472000.

The previous prime is 158166367. The next prime is 158166389. The reversal of 158166372 is 273661851.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 158166372.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262872 + ... + 263472.

Almost surely, 2^158166372 is an apocalyptic number.

158166372 is a gapful number since it is divisible by the number (12) 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 158166372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228432512).

158166372 is an abundant number, since it is smaller than the sum of its proper divisors (298698652).

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

158166372 is a wasteful number, since it uses less digits than its factorization.

158166372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869 (or 867 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 158166372 is about 12576.4212715701. The cubic root of 158166372 is about 540.8017035487.

The spelling of 158166372 in words is "one hundred fifty-eight million, one hundred sixty-six thousand, three hundred seventy-two".