158664500 has 48 divisors (see below), whose sum is σ = 348321792. Its totient is φ = 63136800.

The previous prime is 158664487. The next prime is 158664503. The reversal of 158664500 is 5466851.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158664503) 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, 110789 + ... + 112211.

It is an arithmetic number, because the mean of its divisors is an integer number (7256704).

Almost surely, 2^158664500 is an apocalyptic number.

158664500 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 158664500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174160896).

158664500 is an abundant number, since it is smaller than the sum of its proper divisors (189657292).

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

158664500 is a wasteful number, since it uses less digits than its factorization.

158664500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665 (or 1653 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 158664500 is about 12596.2097473804. The cubic root of 158664500 is about 541.3688408780.

The spelling of 158664500 in words is "one hundred fifty-eight million, six hundred sixty-four thousand, five hundred".