3666973045 has 4 divisors (see below), whose sum is σ = 4400367660. Its totient is φ = 2933578432.

The previous prime is 3666973031. The next prime is 3666973061. The reversal of 3666973045 is 5403796663.

3666973045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5403796663 = 23 ⋅234947681.

It can be written as a sum of positive squares in 2 ways, for example, as 2496101521 + 1170871524 = 49961^2 + 34218^2 .

It is a cyclic number.

It is not a de Polignac number, because 3666973045 - 2¹⁹ = 3666448757 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 3666973045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366697300 + ... + 366697309.

It is an arithmetic number, because the mean of its divisors is an integer number (1100091915).

Almost surely, 2^3666973045 is an apocalyptic number.

It is an amenable number.

3666973045 is a deficient number, since it is larger than the sum of its proper divisors (733394615).

3666973045 is an equidigital number, since it uses as much as digits as its factorization.

3666973045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733394614.

The product of its (nonzero) digits is 2449440, while the sum is 49.

The square root of 3666973045 is about 60555.5368649309. The cubic root of 3666973045 is about 1542.0646178068.

The spelling of 3666973045 in words is "three billion, six hundred sixty-six million, nine hundred seventy-three thousand, forty-five".