2166203130 has 192 divisors, whose sum is σ = 6536982528. Its totient is φ = 449729280.

The previous prime is 2166203119. The next prime is 2166203141. The reversal of 2166203130 is 313026612.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2166203119) and next prime (2166203141).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2166203130.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2377375 + ... + 2378285.

It is an arithmetic number, because the mean of its divisors is an integer number (34046784).

Almost surely, 2^2166203130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2166203130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3268491264).

2166203130 is an abundant number, since it is smaller than the sum of its proper divisors (4370779398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2166203130 is a wasteful number, since it uses less digits than its factorization.

2166203130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021 (or 1008 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 2166203130 is about 46542.4873636981. The cubic root of 2166203130 is about 1293.8970608343.

Adding to 2166203130 its reverse (313026612), we get a palindrome (2479229742).

The spelling of 2166203130 in words is "two billion, one hundred sixty-six million, two hundred three thousand, one hundred thirty".