6166975645 has 4 divisors (see below), whose sum is σ = 7400370780. Its totient is φ = 4933580512.

The previous prime is 6166975589. The next prime is 6166975651. The reversal of 6166975645 is 5465796616.

6166975645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2112597369 + 4054378276 = 45963^2 + 63674^2 .

It is a cyclic number.

It is not a de Polignac number, because 6166975645 - 2¹¹ = 6166973597 is a prime.

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, 616697560 + ... + 616697569.

It is an arithmetic number, because the mean of its divisors is an integer number (1850092695).

Almost surely, 2^6166975645 is an apocalyptic number.

It is an amenable number.

6166975645 is a deficient number, since it is larger than the sum of its proper divisors (1233395135).

6166975645 is a wasteful number, since it uses less digits than its factorization.

6166975645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233395134.

The product of its digits is 8164800, while the sum is 55.

The square root of 6166975645 is about 78530.0938812631. The cubic root of 6166975645 is about 1833.8229818480.

The spelling of 6166975645 in words is "six billion, one hundred sixty-six million, nine hundred seventy-five thousand, six hundred forty-five".