2166450001 has 8 divisors (see below), whose sum is σ = 2181960000. Its totient is φ = 2150955600.

The previous prime is 2166449983. The next prime is 2166450031. The reversal of 2166450001 is 1000546612.

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

It is a cyclic number.

It is not a de Polignac number, because 2166450001 - 2¹⁵ = 2166417233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2166450031) 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, 495975 + ... + 500323.

It is an arithmetic number, because the mean of its divisors is an integer number (272745000).

Almost surely, 2^2166450001 is an apocalyptic number.

It is an amenable number.

2166450001 is a deficient number, since it is larger than the sum of its proper divisors (15509999).

2166450001 is a wasteful number, since it uses less digits than its factorization.

2166450001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7799.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2166450001 is about 46545.1393917775. The cubic root of 2166450001 is about 1293.9462118924.

Adding to 2166450001 its reverse (1000546612), we get a palindrome (3166996613).

The spelling of 2166450001 in words is "two billion, one hundred sixty-six million, four hundred fifty thousand, one".