90216624073 has 2 divisors, whose sum is σ = 90216624074. Its totient is φ = 90216624072.

The previous prime is 90216624019. The next prime is 90216624077. The reversal of 90216624073 is 37042661209.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60943809424 + 29272814649 = 246868^2 + 171093^2 .

It is a cyclic number.

It is not a de Polignac number, because 90216624073 - 2⁹ = 90216623561 is a prime.

It is not a weakly prime, because it can be changed into another prime (90216624077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45108312036 + 45108312037.

It is an arithmetic number, because the mean of its divisors is an integer number (45108312037).

Almost surely, 2^90216624073 is an apocalyptic number.

It is an amenable number.

90216624073 is a deficient number, since it is larger than the sum of its proper divisors (1).

90216624073 is an equidigital number, since it uses as much as digits as its factorization.

90216624073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 90216624073 in words is "ninety billion, two hundred sixteen million, six hundred twenty-four thousand, seventy-three".