2166299201 has 4 divisors (see below), whose sum is σ = 2363235504. Its totient is φ = 1969362900.

The previous prime is 2166299197. The next prime is 2166299237. The reversal of 2166299201 is 1029926612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2166299201 - 2² = 2166299197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2166299281) 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, 98468135 + ... + 98468156.

It is an arithmetic number, because the mean of its divisors is an integer number (590808876).

Almost surely, 2^2166299201 is an apocalyptic number.

It is an amenable number.

2166299201 is a deficient number, since it is larger than the sum of its proper divisors (196936303).

2166299201 is a wasteful number, since it uses less digits than its factorization.

2166299201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196936302.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 2166299201 is about 46543.5194307435. The cubic root of 2166299201 is about 1293.9161886414.

The spelling of 2166299201 in words is "two billion, one hundred sixty-six million, two hundred ninety-nine thousand, two hundred one".