1045521366583 has 4 divisors (see below), whose sum is σ = 1090978817328. Its totient is φ = 1000063915840.

The previous prime is 1045521366563. The next prime is 1045521366649. The reversal of 1045521366583 is 3856631255401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1045521366583 is a prime.

It is a super-2 number, since 2×1045521366583² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045521366563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22728725338 + ... + 22728725383.

It is an arithmetic number, because the mean of its divisors is an integer number (272744704332).

Almost surely, 2^{1045521366583} is an apocalyptic number.

1045521366583 is a deficient number, since it is larger than the sum of its proper divisors (45457450745).

1045521366583 is an equidigital number, since it uses as much as digits as its factorization.

1045521366583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45457450744.

The product of its (nonzero) digits is 2592000, while the sum is 49.

The spelling of 1045521366583 in words is "one trillion, forty-five billion, five hundred twenty-one million, three hundred sixty-six thousand, five hundred eighty-three".