10645440664213 has 4 divisors (see below), whose sum is σ = 10795376448288. Its totient is φ = 10495504880140.

The previous prime is 10645440664211. The next prime is 10645440664217. The reversal of 10645440664213 is 31246604454601.

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 not a de Polignac number, because 10645440664213 - 2¹ = 10645440664211 is a prime.

It is a super-2 number, since 2×10645440664213² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10645440664211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74967891931 + ... + 74967892072.

It is an arithmetic number, because the mean of its divisors is an integer number (2698844112072).

Almost surely, 2^{10645440664213} is an apocalyptic number.

It is an amenable number.

10645440664213 is a deficient number, since it is larger than the sum of its proper divisors (149935784075).

10645440664213 is an equidigital number, since it uses as much as digits as its factorization.

10645440664213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149935784074.

The product of its (nonzero) digits is 1658880, while the sum is 46.

The spelling of 10645440664213 in words is "ten trillion, six hundred forty-five billion, four hundred forty million, six hundred sixty-four thousand, two hundred thirteen".