6705722165657 has 8 divisors (see below), whose sum is σ = 6922067220480. Its totient is φ = 6489379075680.

The previous prime is 6705722165609. The next prime is 6705722165713. The reversal of 6705722165657 is 7565612275076.

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 6705722165657 - 2²⁴ = 6705705388441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6705722165596 and 6705722165605.

It is not an unprimeable number, because it can be changed into a prime (6705722165957) 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, 10004888 + ... + 10654070.

It is an arithmetic number, because the mean of its divisors is an integer number (865258402560).

Almost surely, 2^{6705722165657} is an apocalyptic number.

It is an amenable number.

6705722165657 is a deficient number, since it is larger than the sum of its proper divisors (216345054823).

6705722165657 is a wasteful number, since it uses less digits than its factorization.

6705722165657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982423.

The product of its (nonzero) digits is 37044000, while the sum is 59.

The spelling of 6705722165657 in words is "six trillion, seven hundred five billion, seven hundred twenty-two million, one hundred sixty-five thousand, six hundred fifty-seven".