6702381661 has 8 divisors (see below), whose sum is σ = 6934788000. Its totient is φ = 6470061360.

The previous prime is 6702381659. The next prime is 6702381703. The reversal of 6702381661 is 1661832076.

It is a happy number.

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 6702381661 - 2¹ = 6702381659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6702381601) 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, 164326 + ... + 201016.

It is an arithmetic number, because the mean of its divisors is an integer number (866848500).

Almost surely, 2^6702381661 is an apocalyptic number.

It is an amenable number.

6702381661 is a deficient number, since it is larger than the sum of its proper divisors (232406339).

6702381661 is a wasteful number, since it uses less digits than its factorization.

6702381661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43019.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 6702381661 is about 81868.0747361265. The cubic root of 6702381661 is about 1885.4269834616.

The spelling of 6702381661 in words is "six billion, seven hundred two million, three hundred eighty-one thousand, six hundred sixty-one".