3666659751 has 32 divisors (see below), whose sum is σ = 5573976320. Its totient is φ = 2380910112.

The previous prime is 3666659749. The next prime is 3666659761. The reversal of 3666659751 is 1579566663.

It is not a de Polignac number, because 3666659751 - 2¹ = 3666659749 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666659761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 428820 + ... + 437286.

It is an arithmetic number, because the mean of its divisors is an integer number (174186760).

Almost surely, 2^3666659751 is an apocalyptic number.

3666659751 is a deficient number, since it is larger than the sum of its proper divisors (1907316569).

3666659751 is a wasteful number, since it uses less digits than its factorization.

3666659751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8892 (or 8886 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 54.

The square root of 3666659751 is about 60552.9499776848. The cubic root of 3666659751 is about 1542.0207002626.

The spelling of 3666659751 in words is "three billion, six hundred sixty-six million, six hundred fifty-nine thousand, seven hundred fifty-one".