45221345555999 has 2 divisors, whose sum is σ = 45221345556000. Its totient is φ = 45221345555998.

The previous prime is 45221345555989. The next prime is 45221345556031. The reversal of 45221345555999 is 99955554312254.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45221345555999 - 2²⁴ = 45221328778783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45221345555909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22610672777999 + 22610672778000.

It is an arithmetic number, because the mean of its divisors is an integer number (22610672778000).

Almost surely, 2^{45221345555999} is an apocalyptic number.

45221345555999 is a deficient number, since it is larger than the sum of its proper divisors (1).

45221345555999 is an equidigital number, since it uses as much as digits as its factorization.

45221345555999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 437400000, while the sum is 68.

The spelling of 45221345555999 in words is "forty-five trillion, two hundred twenty-one billion, three hundred forty-five million, five hundred fifty-five thousand, nine hundred ninety-nine".