75006665 has 8 divisors (see below), whose sum is σ = 90072000. Its totient is φ = 59962672.

The previous prime is 75006653. The next prime is 75006691. The reversal of 75006665 is 56660057.

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

It is a cyclic number.

It is not a de Polignac number, because 75006665 - 2⁸ = 75006409 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3836 + ... + 12834.

It is an arithmetic number, because the mean of its divisors is an integer number (11259000).

Almost surely, 2^75006665 is an apocalyptic number.

It is an amenable number.

75006665 is a deficient number, since it is larger than the sum of its proper divisors (15065335).

75006665 is a wasteful number, since it uses less digits than its factorization.

75006665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10671.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 75006665 is about 8660.6388332501. The cubic root of 75006665 is about 421.7288244558.

The spelling of 75006665 in words is "seventy-five million, six thousand, six hundred sixty-five".