13166003661644 has 6 divisors (see below), whose sum is σ = 23040506407884. Its totient is φ = 6583001830820.

The previous prime is 13166003661619. The next prime is 13166003661673. The reversal of 13166003661644 is 44616630066131.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1645750457702 + ... + 1645750457709.

It is an arithmetic number, because the mean of its divisors is an integer number (3840084401314).

Almost surely, 2^{13166003661644} is an apocalyptic number.

It is an amenable number.

13166003661644 is a deficient number, since it is larger than the sum of its proper divisors (9874502746240).

13166003661644 is a wasteful number, since it uses less digits than its factorization.

13166003661644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291500915415 (or 3291500915413 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 47.

The spelling of 13166003661644 in words is "thirteen trillion, one hundred sixty-six billion, three million, six hundred sixty-one thousand, six hundred forty-four".