366625889261 has 2 divisors, whose sum is σ = 366625889262. Its totient is φ = 366625889260.

The previous prime is 366625889093. The next prime is 366625889293. The reversal of 366625889261 is 162988526663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 327498675625 + 39127213636 = 572275^2 + 197806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-366625889261 is a prime.

It is a super-2 number, since 2×366625889261² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 366625889194 and 366625889203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (366625889561) 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, 183312944630 + 183312944631.

It is an arithmetic number, because the mean of its divisors is an integer number (183312944631).

Almost surely, 2^366625889261 is an apocalyptic number.

It is an amenable number.

366625889261 is a deficient number, since it is larger than the sum of its proper divisors (1).

366625889261 is an equidigital number, since it uses as much as digits as its factorization.

366625889261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44789760, while the sum is 62.

The spelling of 366625889261 in words is "three hundred sixty-six billion, six hundred twenty-five million, eight hundred eighty-nine thousand, two hundred sixty-one".