6705256640722 has 4 divisors (see below), whose sum is σ = 10057884961086. Its totient is φ = 3352628320360.

The previous prime is 6705256640717. The next prime is 6705256640741. The reversal of 6705256640722 is 2270466525076.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3993566588881 + 2711690051841 = 1998391^2 + 1646721^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6705256640722.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1676314160179 + ... + 1676314160182.

Almost surely, 2^{6705256640722} is an apocalyptic number.

6705256640722 is a deficient number, since it is larger than the sum of its proper divisors (3352628320364).

6705256640722 is a wasteful number, since it uses less digits than its factorization.

6705256640722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3352628320363.

The product of its (nonzero) digits is 8467200, while the sum is 52.

The spelling of 6705256640722 in words is "six trillion, seven hundred five billion, two hundred fifty-six million, six hundred forty thousand, seven hundred twenty-two".