166886157 has 8 divisors (see below), whose sum is σ = 225331840. Its totient is φ = 109848960.

The previous prime is 166886147. The next prime is 166886189. The reversal of 166886157 is 751688661.

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

It is not a de Polignac number, because 166886157 - 2¹² = 166882061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166886147) 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, 351844 + ... + 352317.

It is an arithmetic number, because the mean of its divisors is an integer number (28166480).

Almost surely, 2^166886157 is an apocalyptic number.

It is an amenable number.

166886157 is a deficient number, since it is larger than the sum of its proper divisors (58445683).

166886157 is an equidigital number, since it uses as much as digits as its factorization.

166886157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704243.

The product of its digits is 483840, while the sum is 48.

The square root of 166886157 is about 12918.4425144829. The cubic root of 166886157 is about 550.5626825483.

The spelling of 166886157 in words is "one hundred sixty-six million, eight hundred eighty-six thousand, one hundred fifty-seven".