158324942661 has 8 divisors (see below), whose sum is σ = 222210445920. Its totient is φ = 99994700592.

The previous prime is 158324942653. The next prime is 158324942669. The reversal of 158324942661 is 166249423851.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (158324942653) and next prime (158324942669).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 158324942661 - 2³ = 158324942653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158324942669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1388815230 + ... + 1388815343.

It is an arithmetic number, because the mean of its divisors is an integer number (27776305740).

Almost surely, 2^158324942661 is an apocalyptic number.

It is an amenable number.

158324942661 is a deficient number, since it is larger than the sum of its proper divisors (63885503259).

158324942661 is a wasteful number, since it uses less digits than its factorization.

158324942661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777630595.

The product of its digits is 2488320, while the sum is 51.

The spelling of 158324942661 in words is "one hundred fifty-eight billion, three hundred twenty-four million, nine hundred forty-two thousand, six hundred sixty-one".