6447760166 has 8 divisors (see below), whose sum is σ = 9672016584. Its totient is φ = 3223754640.

The previous prime is 6447760157. The next prime is 6447760171. The reversal of 6447760166 is 6610677446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×6447760166² = 83147222316512695112, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6447760166.

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, 27461 + ... + 116831.

It is an arithmetic number, because the mean of its divisors is an integer number (1209002073).

Almost surely, 2^6447760166 is an apocalyptic number.

6447760166 is a deficient number, since it is larger than the sum of its proper divisors (3224256418).

6447760166 is a wasteful number, since it uses less digits than its factorization.

6447760166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125446.

The product of its (nonzero) digits is 1016064, while the sum is 47.

The square root of 6447760166 is about 80297.9462128391. The cubic root of 6447760166 is about 1861.2424894775.

The spelling of 6447760166 in words is "six billion, four hundred forty-seven million, seven hundred sixty thousand, one hundred sixty-six".