6711351661 has 8 divisors (see below), whose sum is σ = 7674660224. Its totient is φ = 5749179120.

The previous prime is 6711351659. The next prime is 6711351667. The reversal of 6711351661 is 1661531176.

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 6711351661 - 2¹ = 6711351659 is a prime.

It is a super-2 number, since 2×6711351661² = 90084482235214917842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6711351661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6711351667) 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, 271305 + ... + 295006.

It is an arithmetic number, because the mean of its divisors is an integer number (959332528).

Almost surely, 2^6711351661 is an apocalyptic number.

It is an amenable number.

6711351661 is a deficient number, since it is larger than the sum of its proper divisors (963308563).

6711351661 is a wasteful number, since it uses less digits than its factorization.

6711351661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568011.

The product of its digits is 22680, while the sum is 37.

The square root of 6711351661 is about 81922.8396785658. The cubic root of 6711351661 is about 1886.2677164907.

The spelling of 6711351661 in words is "six billion, seven hundred eleven million, three hundred fifty-one thousand, six hundred sixty-one".