745445665226 has 32 divisors (see below), whose sum is σ = 1146229926912. Its totient is φ = 363517655040.

The previous prime is 745445665207. The next prime is 745445665249. The reversal of 745445665226 is 622566544547.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3870770 + ... + 4058786.

It is an arithmetic number, because the mean of its divisors is an integer number (35819685216).

Almost surely, 2^745445665226 is an apocalyptic number.

745445665226 is a deficient number, since it is larger than the sum of its proper divisors (400784261686).

745445665226 is a wasteful number, since it uses less digits than its factorization.

745445665226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188414.

The product of its digits is 48384000, while the sum is 56.

The spelling of 745445665226 in words is "seven hundred forty-five billion, four hundred forty-five million, six hundred sixty-five thousand, two hundred twenty-six".