6665106518 has 24 divisors (see below), whose sum is σ = 11944259712. Its totient is φ = 2779270704.

The previous prime is 6665106499. The next prime is 6665106521. The reversal of 6665106518 is 8156015666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 915446 + ... + 922697.

It is an arithmetic number, because the mean of its divisors is an integer number (497677488).

Almost surely, 2^6665106518 is an apocalyptic number.

6665106518 is a deficient number, since it is larger than the sum of its proper divisors (5279153194).

6665106518 is a wasteful number, since it uses less digits than its factorization.

6665106518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838196 (or 1838189 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 6665106518 is about 81640.1036133590. The cubic root of 6665106518 is about 1881.9252306973.

The spelling of 6665106518 in words is "six billion, six hundred sixty-five million, one hundred six thousand, five hundred eighteen".