75722666266213 has 2 divisors, whose sum is σ = 75722666266214. Its totient is φ = 75722666266212.

The previous prime is 75722666266021. The next prime is 75722666266277. The reversal of 75722666266213 is 31266266622757.

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., 53403107754049 + 22319558512164 = 7307743^2 + 4724358^2 .

It is a cyclic number.

It is not a de Polignac number, because 75722666266213 - 2¹³ = 75722666258021 is a prime.

It is a super-2 number, since 2×75722666266213² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75722666261213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37861333133106 + 37861333133107.

It is an arithmetic number, because the mean of its divisors is an integer number (37861333133107).

Almost surely, 2^{75722666266213} is an apocalyptic number.

It is an amenable number.

75722666266213 is a deficient number, since it is larger than the sum of its proper divisors (1).

75722666266213 is an equidigital number, since it uses as much as digits as its factorization.

75722666266213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 91445760, while the sum is 61.

The spelling of 75722666266213 in words is "seventy-five trillion, seven hundred twenty-two billion, six hundred sixty-six million, two hundred sixty-six thousand, two hundred thirteen".