10940666549 has 4 divisors (see below), whose sum is σ = 10941645120. Its totient is φ = 10939687980.

The previous prime is 10940666501. The next prime is 10940666573. The reversal of 10940666549 is 94566604901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10940666549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10940666497 and 10940666506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10940666579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472319 + ... + 494940.

It is an arithmetic number, because the mean of its divisors is an integer number (2735411280).

Almost surely, 2^10940666549 is an apocalyptic number.

It is an amenable number.

10940666549 is a deficient number, since it is larger than the sum of its proper divisors (978571).

10940666549 is an equidigital number, since it uses as much as digits as its factorization.

10940666549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978570.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 10940666549 in words is "ten billion, nine hundred forty million, six hundred sixty-six thousand, five hundred forty-nine".