166280001 has 32 divisors (see below), whose sum is σ = 242995200. Its totient is φ = 100751040.

The previous prime is 166279999. The next prime is 166280021. The reversal of 166280001 is 100082661.

166280001 = 1024² + 1025² + ... + 1162².

166280001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166280001 - 2¹ = 166279999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166280021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 245275 + ... + 245951.

It is an arithmetic number, because the mean of its divisors is an integer number (7593600).

Almost surely, 2^166280001 is an apocalyptic number.

It is an amenable number.

166280001 is a deficient number, since it is larger than the sum of its proper divisors (76715199).

166280001 is a wasteful number, since it uses less digits than its factorization.

166280001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 166280001 is about 12894.9602946267. The cubic root of 166280001 is about 549.8952979758.

The spelling of 166280001 in words is "one hundred sixty-six million, two hundred eighty thousand, one".