2166244206424 has 16 divisors (see below), whose sum is σ = 4062166090200. Its totient is φ = 1082999915712.

The previous prime is 2166244206383. The next prime is 2166244206437. The reversal of 2166244206424 is 4246024426612.

It is a super-2 number, since 2×2166244206424² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15198069 + ... + 15339940.

Almost surely, 2^{2166244206424} is an apocalyptic number.

It is an amenable number.

2166244206424 is a deficient number, since it is larger than the sum of its proper divisors (1895921883776).

2166244206424 is a wasteful number, since it uses less digits than its factorization.

2166244206424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30546882 (or 30546878 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 43.

The spelling of 2166244206424 in words is "two trillion, one hundred sixty-six billion, two hundred forty-four million, two hundred six thousand, four hundred twenty-four".