166099886 has 8 divisors (see below), whose sum is σ = 249890160. Its totient is φ = 82803168.

The previous prime is 166099867. The next prime is 166099909. The reversal of 166099886 is 688990661.

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

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, 122546 + ... + 123893.

It is an arithmetic number, because the mean of its divisors is an integer number (31236270).

Almost surely, 2^166099886 is an apocalyptic number.

166099886 is a deficient number, since it is larger than the sum of its proper divisors (83790274).

166099886 is a wasteful number, since it uses less digits than its factorization.

166099886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246778.

The product of its (nonzero) digits is 1119744, while the sum is 53.

The square root of 166099886 is about 12887.9744723521. The cubic root of 166099886 is about 549.6966768262.

The spelling of 166099886 in words is "one hundred sixty-six million, ninety-nine thousand, eight hundred eighty-six".