158999696 has 10 divisors (see below), whose sum is σ = 308061942. Its totient is φ = 79499840.

The previous prime is 158999689. The next prime is 158999699. The reversal of 158999696 is 696999851.

It can be written as a sum of positive squares in only one way, i.e., 155251600 + 3748096 = 12460^2 + 1936^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158999699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4968725 + ... + 4968756.

Almost surely, 2^158999696 is an apocalyptic number.

158999696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

158999696 is a deficient number, since it is larger than the sum of its proper divisors (149062246).

158999696 is an equidigital number, since it uses as much as digits as its factorization.

158999696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9937489 (or 9937483 counting only the distinct ones).

The product of its digits is 9447840, while the sum is 62.

The square root of 158999696 is about 12609.5081585286. The cubic root of 158999696 is about 541.7498062312.

The spelling of 158999696 in words is "one hundred fifty-eight million, nine hundred ninety-nine thousand, six hundred ninety-six".