1645432263222 has 32 divisors (see below), whose sum is σ = 3591922800384. Its totient is φ = 498353508000.

The previous prime is 1645432263203. The next prime is 1645432263253. The reversal of 1645432263222 is 2223622345461.

It is a congruent number.

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, 6431818 + ... + 6682749.

It is an arithmetic number, because the mean of its divisors is an integer number (112247587512).

Almost surely, 2^{1645432263222} is an apocalyptic number.

1645432263222 is an abundant number, since it is smaller than the sum of its proper divisors (1946490537162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1645432263222 is a wasteful number, since it uses less digits than its factorization.

1645432263222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13116484.

The product of its digits is 829440, while the sum is 42.

The spelling of 1645432263222 in words is "one trillion, six hundred forty-five billion, four hundred thirty-two million, two hundred sixty-three thousand, two hundred twenty-two".