6664155375 has 64 divisors (see below), whose sum is σ = 11439792000. Its totient is φ = 3443072000.

The previous prime is 6664155371. The next prime is 6664155391. The reversal of 6664155375 is 5735514666.

It is not a de Polignac number, because 6664155375 - 2² = 6664155371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664155371) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2289421 + ... + 2292329.

It is an arithmetic number, because the mean of its divisors is an integer number (178746750).

Almost surely, 2^6664155375 is an apocalyptic number.

6664155375 is a deficient number, since it is larger than the sum of its proper divisors (4775636625).

6664155375 is a wasteful number, since it uses less digits than its factorization.

6664155375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3117 (or 3107 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 48.

The square root of 6664155375 is about 81634.2781863109. The cubic root of 6664155375 is about 1881.8357064885.

The spelling of 6664155375 in words is "six billion, six hundred sixty-four million, one hundred fifty-five thousand, three hundred seventy-five".