1045166252523 has 4 divisors (see below), whose sum is σ = 1393555003368. Its totient is φ = 696777501680.

The previous prime is 1045166252509. The next prime is 1045166252551. The reversal of 1045166252523 is 3252526615401.

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

It is a cyclic number.

It is not a de Polignac number, because 1045166252523 - 2⁵ = 1045166252491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1045166252503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174194375418 + ... + 174194375423.

It is an arithmetic number, because the mean of its divisors is an integer number (348388750842).

Almost surely, 2^{1045166252523} is an apocalyptic number.

1045166252523 is a deficient number, since it is larger than the sum of its proper divisors (348388750845).

1045166252523 is an equidigital number, since it uses as much as digits as its factorization.

1045166252523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348388750844.

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 1045166252523 in words is "one trillion, forty-five billion, one hundred sixty-six million, two hundred fifty-two thousand, five hundred twenty-three".