158956668 has 90 divisors (see below), whose sum is σ = 450122904. Its totient is φ = 48892896.

The previous prime is 158956663. The next prime is 158956669. The reversal of 158956668 is 866659851.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158956661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 53305 + ... + 56207.

Almost surely, 2^158956668 is an apocalyptic number.

158956668 is a gapful number since it is divisible by the number (18) 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 158956668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225061452).

158956668 is an abundant number, since it is smaller than the sum of its proper divisors (291166236).

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

158956668 is a wasteful number, since it uses less digits than its factorization.

158956668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2945 (or 2921 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The square root of 158956668 is about 12607.8018702706. The cubic root of 158956668 is about 541.7009329434.

The spelling of 158956668 in words is "one hundred fifty-eight million, nine hundred fifty-six thousand, six hundred sixty-eight".