20166297 has 8 divisors (see below), whose sum is σ = 26984544. Its totient is φ = 13396128.

The previous prime is 20166287. The next prime is 20166317. The reversal of 20166297 is 79266102.

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

It is not a de Polignac number, because 20166297 - 2⁷ = 20166169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20166217) 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, 11028 + ... + 12725.

It is an arithmetic number, because the mean of its divisors is an integer number (3373068).

Almost surely, 2^20166297 is an apocalyptic number.

It is an amenable number.

20166297 is a deficient number, since it is larger than the sum of its proper divisors (6818247).

20166297 is a wasteful number, since it uses less digits than its factorization.

20166297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24039.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 20166297 is about 4490.6900360635. The cubic root of 20166297 is about 272.1920185719.

The spelling of 20166297 in words is "twenty million, one hundred sixty-six thousand, two hundred ninety-seven".