6166725889 has 2 divisors, whose sum is σ = 6166725890. Its totient is φ = 6166725888.

The previous prime is 6166725863. The next prime is 6166725923. The reversal of 6166725889 is 9885276616.

6166725889 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6081348289 + 85377600 = 77983^2 + 9240^2 .

It is a cyclic number.

It is not a de Polignac number, because 6166725889 - 2⁵ = 6166725857 is a prime.

It is not a weakly prime, because it can be changed into another prime (6166725989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3083362944 + 3083362945.

It is an arithmetic number, because the mean of its divisors is an integer number (3083362945).

Almost surely, 2^6166725889 is an apocalyptic number.

It is an amenable number.

6166725889 is a deficient number, since it is larger than the sum of its proper divisors (1).

6166725889 is an equidigital number, since it uses as much as digits as its factorization.

6166725889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 58.

The square root of 6166725889 is about 78528.5036722336. The cubic root of 6166725889 is about 1833.7982255492.

The spelling of 6166725889 in words is "six billion, one hundred sixty-six million, seven hundred twenty-five thousand, eight hundred eighty-nine".