366771950561 has 2 divisors, whose sum is σ = 366771950562. Its totient is φ = 366771950560.

The previous prime is 366771950543. The next prime is 366771950639. The reversal of 366771950561 is 165059177663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 366606030400 + 165920161 = 605480^2 + 12881^2 .

It is an emirp because it is prime and its reverse (165059177663) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-366771950561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 366771950497 and 366771950506.

It is not a weakly prime, because it can be changed into another prime (366771950521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183385975280 + 183385975281.

It is an arithmetic number, because the mean of its divisors is an integer number (183385975281).

Almost surely, 2^366771950561 is an apocalyptic number.

It is an amenable number.

366771950561 is a deficient number, since it is larger than the sum of its proper divisors (1).

366771950561 is an equidigital number, since it uses as much as digits as its factorization.

366771950561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7144200, while the sum is 56.

The spelling of 366771950561 in words is "three hundred sixty-six billion, seven hundred seventy-one million, nine hundred fifty thousand, five hundred sixty-one".