166158425293 has 8 divisors (see below), whose sum is σ = 196020999680. Its totient is φ = 137827265040.

The previous prime is 166158425249. The next prime is 166158425369. The reversal of 166158425293 is 392524851661.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 166158425293 - 2¹⁷ = 166158294221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166158425293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166158425233) 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, 382853298 + ... + 382853731.

It is an arithmetic number, because the mean of its divisors is an integer number (24502624960).

Almost surely, 2^166158425293 is an apocalyptic number.

It is an amenable number.

166158425293 is a deficient number, since it is larger than the sum of its proper divisors (29862574387).

166158425293 is an equidigital number, since it uses as much as digits as its factorization.

166158425293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765707067.

The product of its digits is 3110400, while the sum is 52.

The spelling of 166158425293 in words is "one hundred sixty-six billion, one hundred fifty-eight million, four hundred twenty-five thousand, two hundred ninety-three".