10654116661 has 8 divisors (see below), whose sum is σ = 10713700440. Its totient is φ = 10594578432.

The previous prime is 10654116653. The next prime is 10654116679. The reversal of 10654116661 is 16661145601.

It can be written as a sum of positive squares in 4 ways, for example, as 2320252561 + 8333864100 = 48169^2 + 91290^2 .

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 10654116661 - 2³ = 10654116653 is a prime.

It is a super-2 number, since 2×10654116661² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10654116661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10654116761) 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, 528381 + ... + 548173.

It is an arithmetic number, because the mean of its divisors is an integer number (1339212555).

Almost surely, 2^10654116661 is an apocalyptic number.

It is an amenable number.

10654116661 is a deficient number, since it is larger than the sum of its proper divisors (59583779).

10654116661 is a wasteful number, since it uses less digits than its factorization.

10654116661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22775.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 10654116661 in words is "ten billion, six hundred fifty-four million, one hundred sixteen thousand, six hundred sixty-one".