2163671516 has 24 divisors (see below), whose sum is σ = 3880941120. Its totient is φ = 1054860800.

The previous prime is 2163671509. The next prime is 2163671563. The reversal of 2163671516 is 6151763612.

It is a self number, because there is not a number n which added to its sum of digits gives 2163671516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504461 + ... + 508731.

It is an arithmetic number, because the mean of its divisors is an integer number (161705880).

Almost surely, 2^2163671516 is an apocalyptic number.

It is an amenable number.

2163671516 is a deficient number, since it is larger than the sum of its proper divisors (1717269604).

2163671516 is a wasteful number, since it uses less digits than its factorization.

2163671516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7405 (or 7403 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 2163671516 is about 46515.2826069024. The cubic root of 2163671516 is about 1293.3928106762.

The spelling of 2163671516 in words is "two billion, one hundred sixty-three million, six hundred seventy-one thousand, five hundred sixteen".