10666997844 has 24 divisors (see below), whose sum is σ = 24894918048. Its totient is φ = 3554915040.

The previous prime is 10666997821. The next prime is 10666997857. The reversal of 10666997844 is 44879966601.

It is a super-2 number, since 2×10666997844² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33102 + ... + 149765.

It is an arithmetic number, because the mean of its divisors is an integer number (1037288252).

Almost surely, 2^10666997844 is an apocalyptic number.

It is an amenable number.

10666997844 is an abundant number, since it is smaller than the sum of its proper divisors (14227920204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10666997844 is a wasteful number, since it uses less digits than its factorization.

10666997844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187735 (or 187733 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 60.

The spelling of 10666997844 in words is "ten billion, six hundred sixty-six million, nine hundred ninety-seven thousand, eight hundred forty-four".