158897760 has 288 divisors, whose sum is σ = 608332032. Its totient is φ = 34145280.

The previous prime is 158897743. The next prime is 158897801. The reversal of 158897760 is 67798851.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1212895 + ... + 1213025.

It is an arithmetic number, because the mean of its divisors is an integer number (2112264).

Almost surely, 2^158897760 is an apocalyptic number.

158897760 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 158897760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304166016).

158897760 is an abundant number, since it is smaller than the sum of its proper divisors (449434272).

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

158897760 is a wasteful number, since it uses less digits than its factorization.

158897760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 51.

The square root of 158897760 is about 12605.4654812902. The cubic root of 158897760 is about 541.6340080770.

The spelling of 158897760 in words is "one hundred fifty-eight million, eight hundred ninety-seven thousand, seven hundred sixty".