465221505445 has 4 divisors (see below), whose sum is σ = 558265806540. Its totient is φ = 372177204352.

The previous prime is 465221505439. The next prime is 465221505493. The reversal of 465221505445 is 544505122564.

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 360171620449 + 105049884996 = 600143^2 + 324114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-465221505445 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46522150540 + ... + 46522150549.

It is an arithmetic number, because the mean of its divisors is an integer number (139566451635).

Almost surely, 2^465221505445 is an apocalyptic number.

It is an amenable number.

465221505445 is a deficient number, since it is larger than the sum of its proper divisors (93044301095).

465221505445 is an equidigital number, since it uses as much as digits as its factorization.

465221505445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93044301094.

The product of its (nonzero) digits is 960000, while the sum is 43.

The spelling of 465221505445 in words is "four hundred sixty-five billion, two hundred twenty-one million, five hundred five thousand, four hundred forty-five".