2171130663 has 24 divisors (see below), whose sum is σ = 3235791360. Its totient is φ = 1292971680.

The previous prime is 2171130631. The next prime is 2171130677. The reversal of 2171130663 is 3660311712.

It is not a de Polignac number, because 2171130663 - 2⁵ = 2171130631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2171130663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171130613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53353 + ... + 84786.

It is an arithmetic number, because the mean of its divisors is an integer number (134824640).

Almost surely, 2^2171130663 is an apocalyptic number.

2171130663 is a deficient number, since it is larger than the sum of its proper divisors (1064660697).

2171130663 is a wasteful number, since it uses less digits than its factorization.

2171130663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138199 (or 138186 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 2171130663 is about 46595.3931521132. The cubic root of 2171130663 is about 1294.8774078333.

The spelling of 2171130663 in words is "two billion, one hundred seventy-one million, one hundred thirty thousand, six hundred sixty-three".