166092001 has 4 divisors (see below), whose sum is σ = 170581012. Its totient is φ = 161602992.

The previous prime is 166091999. The next prime is 166092011. The reversal of 166092001 is 100290661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100290661 = 1723 ⋅58207.

It can be written as a sum of positive squares in 2 ways, for example, as 60824401 + 105267600 = 7799^2 + 10260^2 .

It is a cyclic number.

It is not a de Polignac number, because 166092001 - 2¹ = 166091999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166092011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2244450 + ... + 2244523.

It is an arithmetic number, because the mean of its divisors is an integer number (42645253).

Almost surely, 2^166092001 is an apocalyptic number.

It is an amenable number.

166092001 is a deficient number, since it is larger than the sum of its proper divisors (4489011).

166092001 is an equidigital number, since it uses as much as digits as its factorization.

166092001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4489010.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 166092001 is about 12887.6685633981. The cubic root of 166092001 is about 549.6879783918.

The spelling of 166092001 in words is "one hundred sixty-six million, ninety-two thousand, one".