166211158 has 8 divisors (see below), whose sum is σ = 249473952. Its totient is φ = 83053176.

The previous prime is 166211137. The next prime is 166211173. The reversal of 166211158 is 851112661.

166211158 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×166211158² = 55252298087401928, which contains 22 as substring.

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, 22110 + ... + 28657.

It is an arithmetic number, because the mean of its divisors is an integer number (31184244).

Almost surely, 2^166211158 is an apocalyptic number.

166211158 is a deficient number, since it is larger than the sum of its proper divisors (83262794).

166211158 is a wasteful number, since it uses less digits than its factorization.

166211158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52406.

The product of its digits is 2880, while the sum is 31.

The square root of 166211158 is about 12892.2906420853. The cubic root of 166211158 is about 549.8193985543.

The spelling of 166211158 in words is "one hundred sixty-six million, two hundred eleven thousand, one hundred fifty-eight".