3503663666 has 16 divisors (see below), whose sum is σ = 5273100000. Its totient is φ = 1745972928.

The previous prime is 3503663663. The next prime is 3503663687. The reversal of 3503663666 is 6663663053.

It is not an unprimeable number, because it can be changed into a prime (3503663663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1296785 + ... + 1299483.

It is an arithmetic number, because the mean of its divisors is an integer number (329568750).

Almost surely, 2^3503663666 is an apocalyptic number.

3503663666 is a deficient number, since it is larger than the sum of its proper divisors (1769436334).

3503663666 is a wasteful number, since it uses less digits than its factorization.

3503663666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4633.

The product of its (nonzero) digits is 1049760, while the sum is 44.

The square root of 3503663666 is about 59191.7533614270. The cubic root of 3503663666 is about 1518.8240653793.

The spelling of 3503663666 in words is "three billion, five hundred three million, six hundred sixty-three thousand, six hundred sixty-six".