166158425294 has 8 divisors (see below), whose sum is σ = 249299664840. Its totient is φ = 83058537016.

The previous prime is 166158425249. The next prime is 166158425369. The reversal of 166158425294 is 492524851661.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10327769 + ... + 10343844.

It is an arithmetic number, because the mean of its divisors is an integer number (31162458105).

Almost surely, 2^166158425294 is an apocalyptic number.

166158425294 is a deficient number, since it is larger than the sum of its proper divisors (83141239546).

166158425294 is a wasteful number, since it uses less digits than its factorization.

166158425294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20675634.

The product of its digits is 4147200, while the sum is 53.

The spelling of 166158425294 in words is "one hundred sixty-six billion, one hundred fifty-eight million, four hundred twenty-five thousand, two hundred ninety-four".