366828661 has 2 divisors, whose sum is σ = 366828662. Its totient is φ = 366828660.

The previous prime is 366828647. The next prime is 366828677. The reversal of 366828661 is 166828663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218744100 + 148084561 = 14790^2 + 12169^2 .

It is an emirp because it is prime and its reverse (166828663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 366828661 - 2¹¹ = 366826613 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (366828361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183414330 + 183414331.

It is an arithmetic number, because the mean of its divisors is an integer number (183414331).

Almost surely, 2^366828661 is an apocalyptic number.

It is an amenable number.

366828661 is a deficient number, since it is larger than the sum of its proper divisors (1).

366828661 is an equidigital number, since it uses as much as digits as its factorization.

366828661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 46.

The square root of 366828661 is about 19152.7716271040. The cubic root of 366828661 is about 715.8484465654.

The spelling of 366828661 in words is "three hundred sixty-six million, eight hundred twenty-eight thousand, six hundred sixty-one".