75550666066507 has 8 divisors (see below), whose sum is σ = 80127862515360. Its totient is φ = 71081168357760.

The previous prime is 75550666066471. The next prime is 75550666066517. The reversal of 75550666066507 is 70566066605557.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75550666066507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75550666066517) 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, 26924683582 + ... + 26924686387.

It is an arithmetic number, because the mean of its divisors is an integer number (10015982814420).

Almost surely, 2^{75550666066507} is an apocalyptic number.

75550666066507 is a deficient number, since it is larger than the sum of its proper divisors (4577196448853).

75550666066507 is a wasteful number, since it uses less digits than its factorization.

75550666066507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53849370053.

The product of its (nonzero) digits is 238140000, while the sum is 64.

The spelling of 75550666066507 in words is "seventy-five trillion, five hundred fifty billion, six hundred sixty-six million, sixty-six thousand, five hundred seven".