10660405645 has 8 divisors (see below), whose sum is σ = 13544986104. Its totient is φ = 8026658304.

The previous prime is 10660405589. The next prime is 10660405669. The reversal of 10660405645 is 54650406601.

It can be written as a sum of positive squares in 4 ways, for example, as 96471684 + 10563933961 = 9822^2 + 102781^2 .

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-10660405645 is a prime.

It is a super-3 number, since 3×10660405645³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62708184 + ... + 62708353.

It is an arithmetic number, because the mean of its divisors is an integer number (1693123263).

Almost surely, 2^10660405645 is an apocalyptic number.

It is an amenable number.

10660405645 is a deficient number, since it is larger than the sum of its proper divisors (2884580459).

10660405645 is a wasteful number, since it uses less digits than its factorization.

10660405645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125416559.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 10660405645 in words is "ten billion, six hundred sixty million, four hundred five thousand, six hundred forty-five".