75766066757 has 8 divisors (see below), whose sum is σ = 77183808000. Its totient is φ = 74352777984.

The previous prime is 75766066723. The next prime is 75766066759.

75766066757 is nontrivially palindromic in base 10.

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

It is a de Polignac number, because none of the positive numbers 2^k-75766066757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75766066757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75766066759) 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, 1078757 + ... + 1146842.

It is an arithmetic number, because the mean of its divisors is an integer number (9647976000).

Almost surely, 2^75766066757 is an apocalyptic number.

It is an amenable number.

75766066757 is a deficient number, since it is larger than the sum of its proper divisors (1417741243).

75766066757 is a wasteful number, since it uses less digits than its factorization.

75766066757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226235.

The product of its (nonzero) digits is 77792400, while the sum is 62.

The spelling of 75766066757 in words is "seventy-five billion, seven hundred sixty-six million, sixty-six thousand, seven hundred fifty-seven".