158433660 has 432 divisors, whose sum is σ = 645345792. Its totient is φ = 31046400.

The previous prime is 158433623. The next prime is 158433679. The reversal of 158433660 is 66334851.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 143 ways as a sum of consecutive naturals, for example, 2231425 + ... + 2231495.

It is an arithmetic number, because the mean of its divisors is an integer number (1493856).

Almost surely, 2^158433660 is an apocalyptic number.

158433660 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 158433660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322672896).

158433660 is an abundant number, since it is smaller than the sum of its proper divisors (486912132).

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

158433660 is a wasteful number, since it uses less digits than its factorization.

158433660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 158433660 is about 12587.0433382904. The cubic root of 158433660 is about 541.1061687237.

It can be divided in two parts, 15843 and 3660, that added together give a triangular number (19503 = T₁₉₇).

The spelling of 158433660 in words is "one hundred fifty-eight million, four hundred thirty-three thousand, six hundred sixty".