366545855965481 has 2 divisors, whose sum is σ = 366545855965482. Its totient is φ = 366545855965480.

The previous prime is 366545855965453. The next prime is 366545855965559. The reversal of 366545855965481 is 184569558545663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 281283883110400 + 85261972855081 = 16771520^2 + 9233741^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-366545855965481 is a prime.

It is a super-2 number, since 2×366545855965481² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 366545855965396 and 366545855965405.

It is not a weakly prime, because it can be changed into another prime (366545855965411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183272927982740 + 183272927982741.

It is an arithmetic number, because the mean of its divisors is an integer number (183272927982741).

Almost surely, 2^{366545855965481} is an apocalyptic number.

It is an amenable number.

366545855965481 is a deficient number, since it is larger than the sum of its proper divisors (1).

366545855965481 is an equidigital number, since it uses as much as digits as its factorization.

366545855965481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18662400000, while the sum is 80.

The spelling of 366545855965481 in words is "three hundred sixty-six trillion, five hundred forty-five billion, eight hundred fifty-five million, nine hundred sixty-five thousand, four hundred eighty-one".