1145664743005 has 4 divisors (see below), whose sum is σ = 1374797691612. Its totient is φ = 916531794400.

The previous prime is 1145664742991. The next prime is 1145664743023. The reversal of 1145664743005 is 5003474665411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 357578884441 + 788085858564 = 597979^2 + 887742^2 .

It is not a de Polignac number, because 1145664743005 - 2³⁵ = 1111305004637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114566474296 + ... + 114566474305.

It is an arithmetic number, because the mean of its divisors is an integer number (343699422903).

Almost surely, 2^{1145664743005} is an apocalyptic number.

It is an amenable number.

1145664743005 is a deficient number, since it is larger than the sum of its proper divisors (229132948607).

1145664743005 is an equidigital number, since it uses as much as digits as its factorization.

1145664743005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229132948606.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 1145664743005 in words is "one trillion, one hundred forty-five billion, six hundred sixty-four million, seven hundred forty-three thousand, five".