6791656641 has 16 divisors (see below), whose sum is σ = 11290027008. Its totient is φ = 3528133200.

The previous prime is 6791656639. The next prime is 6791656657. The reversal of 6791656641 is 1466561976.

It is not a de Polignac number, because 6791656641 - 2¹ = 6791656639 is a prime.

It is a super-2 number, since 2×6791656641² = 92253199858478805762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6791656631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14700325 + ... + 14700786.

It is an arithmetic number, because the mean of its divisors is an integer number (705626688).

Almost surely, 2^6791656641 is an apocalyptic number.

It is an amenable number.

6791656641 is a deficient number, since it is larger than the sum of its proper divisors (4498370367).

6791656641 is a wasteful number, since it uses less digits than its factorization.

6791656641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29401132.

The product of its digits is 1632960, while the sum is 51.

The square root of 6791656641 is about 82411.5079403356. The cubic root of 6791656641 is about 1893.7613142175.

The spelling of 6791656641 in words is "six billion, seven hundred ninety-one million, six hundred fifty-six thousand, six hundred forty-one".