10766551661 has 8 divisors (see below), whose sum is σ = 11077746624. Its totient is φ = 10457670880.

The previous prime is 10766551637. The next prime is 10766551669. The reversal of 10766551661 is 16615566701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10766551661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10766551669) 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, 569105 + ... + 587718.

It is an arithmetic number, because the mean of its divisors is an integer number (1384718328).

Almost surely, 2^10766551661 is an apocalyptic number.

It is an amenable number.

10766551661 is a deficient number, since it is larger than the sum of its proper divisors (311194963).

10766551661 is a wasteful number, since it uses less digits than its factorization.

10766551661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157091.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 10766551661 in words is "ten billion, seven hundred sixty-six million, five hundred fifty-one thousand, six hundred sixty-one".