365666641 has 2 divisors, whose sum is σ = 365666642. Its totient is φ = 365666640.

The previous prime is 365666633. The next prime is 365666657. The reversal of 365666641 is 146666563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 331385616 + 34281025 = 18204^2 + 5855^2 .

It is a cyclic number.

It is not a de Polignac number, because 365666641 - 2³ = 365666633 is a prime.

It is not a weakly prime, because it can be changed into another prime (365666611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182833320 + 182833321.

It is an arithmetic number, because the mean of its divisors is an integer number (182833321).

Almost surely, 2^365666641 is an apocalyptic number.

It is an amenable number.

365666641 is a deficient number, since it is larger than the sum of its proper divisors (1).

365666641 is an equidigital number, since it uses as much as digits as its factorization.

365666641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 43.

The square root of 365666641 is about 19122.4120079032. The cubic root of 365666641 is about 715.0917716817.

The spelling of 365666641 in words is "three hundred sixty-five million, six hundred sixty-six thousand, six hundred forty-one".