6664177144 has 8 divisors (see below), whose sum is σ = 12495332160. Its totient is φ = 3332088568.

The previous prime is 6664177133. The next prime is 6664177181. The reversal of 6664177144 is 4417714666.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×6664177144² = 88822514013223993472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6664177094 and 6664177103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 416511064 + ... + 416511079.

It is an arithmetic number, because the mean of its divisors is an integer number (1561916520).

Almost surely, 2^6664177144 is an apocalyptic number.

It is an amenable number.

6664177144 is a deficient number, since it is larger than the sum of its proper divisors (5831155016).

6664177144 is a wasteful number, since it uses less digits than its factorization.

6664177144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833022149 (or 833022145 counting only the distinct ones).

The product of its digits is 677376, while the sum is 46.

The square root of 6664177144 is about 81634.4115186727. The cubic root of 6664177144 is about 1881.8377555422.

The spelling of 6664177144 in words is "six billion, six hundred sixty-four million, one hundred seventy-seven thousand, one hundred forty-four".