45355620217 has 2 divisors, whose sum is σ = 45355620218. Its totient is φ = 45355620216.

The previous prime is 45355620209. The next prime is 45355620223. The reversal of 45355620217 is 71202655354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26598674281 + 18756945936 = 163091^2 + 136956^2 .

It is a cyclic number.

It is not a de Polignac number, because 45355620217 - 2³ = 45355620209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45355620217.

It is not a weakly prime, because it can be changed into another prime (45355620227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22677810108 + 22677810109.

It is an arithmetic number, because the mean of its divisors is an integer number (22677810109).

Almost surely, 2^45355620217 is an apocalyptic number.

It is an amenable number.

45355620217 is a deficient number, since it is larger than the sum of its proper divisors (1).

45355620217 is an equidigital number, since it uses as much as digits as its factorization.

45355620217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 45355620217 in words is "forty-five billion, three hundred fifty-five million, six hundred twenty thousand, two hundred seventeen".