3666990013 has 4 divisors (see below), whose sum is σ = 3670122688. Its totient is φ = 3663857340.

The previous prime is 3666990011. The next prime is 3666990071. The reversal of 3666990013 is 3100996663.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3666990013 - 2¹ = 3666990011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666990011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1564581 + ... + 1566922.

It is an arithmetic number, because the mean of its divisors is an integer number (917530672).

Almost surely, 2^3666990013 is an apocalyptic number.

It is an amenable number.

3666990013 is a deficient number, since it is larger than the sum of its proper divisors (3132675).

3666990013 is a wasteful number, since it uses less digits than its factorization.

3666990013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132674.

The product of its (nonzero) digits is 157464, while the sum is 43.

The square root of 3666990013 is about 60555.6769675643. The cubic root of 3666990013 is about 1542.0669963091.

The spelling of 3666990013 in words is "three billion, six hundred sixty-six million, nine hundred ninety thousand, thirteen".