2664544464433 has 2 divisors, whose sum is σ = 2664544464434. Its totient is φ = 2664544464432.

The previous prime is 2664544464419. The next prime is 2664544464467. The reversal of 2664544464433 is 3344644454662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1501634569744 + 1162909894689 = 1225412^2 + 1078383^2 .

It is a cyclic number.

It is not a de Polignac number, because 2664544464433 - 2⁴¹ = 465521208881 is a prime.

It is a super-2 number, since 2×2664544464433² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2664544464493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332272232216 + 1332272232217.

It is an arithmetic number, because the mean of its divisors is an integer number (1332272232217).

Almost surely, 2^{2664544464433} is an apocalyptic number.

It is an amenable number.

2664544464433 is a deficient number, since it is larger than the sum of its proper divisors (1).

2664544464433 is an equidigital number, since it uses as much as digits as its factorization.

2664544464433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79626240, while the sum is 55.

The spelling of 2664544464433 in words is "two trillion, six hundred sixty-four billion, five hundred forty-four million, four hundred sixty-four thousand, four hundred thirty-three".