10660661644 has 48 divisors (see below), whose sum is σ = 19796023296. Its totient is φ = 5012884800.

The previous prime is 10660661549. The next prime is 10660661701. The reversal of 10660661644 is 44616606601.

It is a super-2 number, since 2×10660661644² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10660661597 and 10660661606.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2591149 + ... + 2595259.

It is an arithmetic number, because the mean of its divisors is an integer number (412417152).

Almost surely, 2^10660661644 is an apocalyptic number.

It is an amenable number.

10660661644 is a deficient number, since it is larger than the sum of its proper divisors (9135361652).

10660661644 is a wasteful number, since it uses less digits than its factorization.

10660661644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606 (or 4604 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 10660661644 in words is "ten billion, six hundred sixty million, six hundred sixty-one thousand, six hundred forty-four".