3666640502 has 16 divisors (see below), whose sum is σ = 6413949600. Its totient is φ = 1571417064.

The previous prime is 3666640421. The next prime is 3666640511. The reversal of 3666640502 is 2050466663.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2671793 + ... + 2673164.

It is an arithmetic number, because the mean of its divisors is an integer number (400871850).

Almost surely, 2^3666640502 is an apocalyptic number.

3666640502 is a deficient number, since it is larger than the sum of its proper divisors (2747309098).

3666640502 is an equidigital number, since it uses as much as digits as its factorization.

3666640502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5344980 (or 5344966 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 3666640502 is about 60552.7910339400. The cubic root of 3666640502 is about 1542.0180018568.

The spelling of 3666640502 in words is "three billion, six hundred sixty-six million, six hundred forty thousand, five hundred two".