66325466461 has 2 divisors, whose sum is σ = 66325466462. Its totient is φ = 66325466460.

The previous prime is 66325466407. The next prime is 66325466483. The reversal of 66325466461 is 16466452366.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60599668900 + 5725797561 = 246170^2 + 75669^2 .

It is a cyclic number.

It is not a de Polignac number, because 66325466461 - 2²⁹ = 65788595549 is a prime.

It is a super-3 number, since 3×66325466461³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66325469461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33162733230 + 33162733231.

It is an arithmetic number, because the mean of its divisors is an integer number (33162733231).

Almost surely, 2^66325466461 is an apocalyptic number.

It is an amenable number.

66325466461 is a deficient number, since it is larger than the sum of its proper divisors (1).

66325466461 is an equidigital number, since it uses as much as digits as its factorization.

66325466461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 49.

The spelling of 66325466461 in words is "sixty-six billion, three hundred twenty-five million, four hundred sixty-six thousand, four hundred sixty-one".