45453205221 has 16 divisors (see below), whose sum is σ = 63885032640. Its totient is φ = 28666310400.

The previous prime is 45453205163. The next prime is 45453205223. The reversal of 45453205221 is 12250235454.

It is a happy number.

It is not a de Polignac number, because 45453205221 - 2³⁰ = 44379463397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45453205223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528820 + ... + 608733.

It is an arithmetic number, because the mean of its divisors is an integer number (3992814540).

Almost surely, 2^45453205221 is an apocalyptic number.

It is an amenable number.

45453205221 is a deficient number, since it is larger than the sum of its proper divisors (18431827419).

45453205221 is a wasteful number, since it uses less digits than its factorization.

45453205221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138276.

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 45453205221 in words is "forty-five billion, four hundred fifty-three million, two hundred five thousand, two hundred twenty-one".