3666520343 has 2 divisors, whose sum is σ = 3666520344. Its totient is φ = 3666520342.

The previous prime is 3666520283. The next prime is 3666520357. The reversal of 3666520343 is 3430256663.

3666520343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3666520343 - 2¹² = 3666516247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3666520297 and 3666520306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3666520393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1833260171 + 1833260172.

It is an arithmetic number, because the mean of its divisors is an integer number (1833260172).

Almost surely, 2^3666520343 is an apocalyptic number.

3666520343 is a deficient number, since it is larger than the sum of its proper divisors (1).

3666520343 is an equidigital number, since it uses as much as digits as its factorization.

3666520343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 38.

The square root of 3666520343 is about 60551.7988419832. The cubic root of 3666520343 is about 1542.0011572488.

The spelling of 3666520343 in words is "three billion, six hundred sixty-six million, five hundred twenty thousand, three hundred forty-three".