705000566681 has 4 divisors (see below), whose sum is σ = 705141600000. Its totient is φ = 704859533364.

The previous prime is 705000566671. The next prime is 705000566723. The reversal of 705000566681 is 186665000507.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 186665000507 = 4129 ⋅45208283.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-705000566681 is a prime.

It is a super-2 number, since 2×705000566681² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (705000566651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70509161 + ... + 70519158.

It is an arithmetic number, because the mean of its divisors is an integer number (176285400000).

Almost surely, 2^705000566681 is an apocalyptic number.

It is an amenable number.

705000566681 is a deficient number, since it is larger than the sum of its proper divisors (141033319).

705000566681 is a wasteful number, since it uses less digits than its factorization.

705000566681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141033318.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 705000566681 in words is "seven hundred five billion, five hundred sixty-six thousand, six hundred eighty-one".