166222995 has 16 divisors (see below), whose sum is σ = 266194080. Its totient is φ = 88573184.

The previous prime is 166222967. The next prime is 166223017. The reversal of 166222995 is 599222661.

166222995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 166222995 - 2¹⁷ = 166091923 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15037 + ... + 23633.

It is an arithmetic number, because the mean of its divisors is an integer number (16637130).

Almost surely, 2^166222995 is an apocalyptic number.

166222995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

166222995 is a deficient number, since it is larger than the sum of its proper divisors (99971085).

166222995 is a wasteful number, since it uses less digits than its factorization.

166222995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9894.

The product of its digits is 116640, while the sum is 42.

The square root of 166222995 is about 12892.7497067150. The cubic root of 166222995 is about 549.8324503410.

The spelling of 166222995 in words is "one hundred sixty-six million, two hundred twenty-two thousand, nine hundred ninety-five".