158881960 has 24 divisors (see below), whose sum is σ = 357663870. Its totient is φ = 63520896.

The previous prime is 158881939. The next prime is 158881967. The reversal of 158881960 is 69188851.

It can be written as a sum of positive squares in 3 ways, for example, as 151142436 + 7739524 = 12294^2 + 2782^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 158881960.

It is not an unprimeable number, because it can be changed into a prime (158881967) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78724 + ... + 80716.

Almost surely, 2^158881960 is an apocalyptic number.

158881960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158881960 is an abundant number, since it is smaller than the sum of its proper divisors (198781910).

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

158881960 is an frugal number, since it uses more digits than its factorization.

158881960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3997 (or 2000 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 46.

The square root of 158881960 is about 12604.8387534312. The cubic root of 158881960 is about 541.6160550213.

The spelling of 158881960 in words is "one hundred fifty-eight million, eight hundred eighty-one thousand, nine hundred sixty".