90866296321 has 2 divisors, whose sum is σ = 90866296322. Its totient is φ = 90866296320.

The previous prime is 90866296307. The next prime is 90866296333. The reversal of 90866296321 is 12369266809.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82676951296 + 8189345025 = 287536^2 + 90495^2 .

It is a cyclic number.

It is not a de Polignac number, because 90866296321 - 2¹⁹ = 90865772033 is a prime.

It is a super-3 number, since 3×90866296321³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (90866296621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45433148160 + 45433148161.

It is an arithmetic number, because the mean of its divisors is an integer number (45433148161).

Almost surely, 2^90866296321 is an apocalyptic number.

It is an amenable number.

90866296321 is a deficient number, since it is larger than the sum of its proper divisors (1).

90866296321 is an equidigital number, since it uses as much as digits as its factorization.

90866296321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 90866296321 in words is "ninety billion, eight hundred sixty-six million, two hundred ninety-six thousand, three hundred twenty-one".