6166693643 has 4 divisors (see below), whose sum is σ = 6727302168. Its totient is φ = 5606085120.

The previous prime is 6166693633. The next prime is 6166693651. The reversal of 6166693643 is 3463966616.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6166693643 - 2¹⁰ = 6166692619 is a prime.

It is a super-2 number, since 2×6166693643² = 76056220973233222898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6166693591 and 6166693600.

It is not an unprimeable number, because it can be changed into a prime (6166693613) 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, 280304246 + ... + 280304267.

It is an arithmetic number, because the mean of its divisors is an integer number (1681825542).

Almost surely, 2^6166693643 is an apocalyptic number.

6166693643 is a deficient number, since it is larger than the sum of its proper divisors (560608525).

6166693643 is a wasteful number, since it uses less digits than its factorization.

6166693643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560608524.

The product of its digits is 2519424, while the sum is 50.

The square root of 6166693643 is about 78528.2983579805. The cubic root of 6166693643 is about 1833.7950292144.

The spelling of 6166693643 in words is "six billion, one hundred sixty-six million, six hundred ninety-three thousand, six hundred forty-three".