6757661726661 has 12 divisors (see below), whose sum is σ = 9571405537952. Its totient is φ = 4240101475008.

The previous prime is 6757661726653. The next prime is 6757661726663. The reversal of 6757661726661 is 1666271667576.

It is not a de Polignac number, because 6757661726661 - 2³ = 6757661726653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6757661726592 and 6757661726601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6757661726663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3897151225 + ... + 3897152958.

Almost surely, 2^{6757661726661} is an apocalyptic number.

It is an amenable number.

6757661726661 is a deficient number, since it is larger than the sum of its proper divisors (2813743811291).

6757661726661 is a wasteful number, since it uses less digits than its factorization.

6757661726661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7794304220 (or 7794304203 counting only the distinct ones).

The product of its digits is 160030080, while the sum is 66.

The spelling of 6757661726661 in words is "six trillion, seven hundred fifty-seven billion, six hundred sixty-one million, seven hundred twenty-six thousand, six hundred sixty-one".