75666713 has 8 divisors (see below), whose sum is σ = 80097600. Its totient is φ = 71357328.

The previous prime is 75666671. The next prime is 75666737. The reversal of 75666713 is 31766657.

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 75666713 - 2⁶ = 75666649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75666313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29093 + ... + 31586.

It is an arithmetic number, because the mean of its divisors is an integer number (10012200).

Almost surely, 2^75666713 is an apocalyptic number.

It is an amenable number.

75666713 is a deficient number, since it is larger than the sum of its proper divisors (4430887).

75666713 is a wasteful number, since it uses less digits than its factorization.

75666713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60751.

The product of its digits is 158760, while the sum is 41.

The square root of 75666713 is about 8698.6615637120. The cubic root of 75666713 is about 422.9622647215.

The spelling of 75666713 in words is "seventy-five million, six hundred sixty-six thousand, seven hundred thirteen".