6642366603 has 16 divisors (see below), whose sum is σ = 9049397760. Its totient is φ = 4331883296.

The previous prime is 6642366593. The next prime is 6642366607. The reversal of 6642366603 is 3066632466.

It is a cyclic number.

It is not a de Polignac number, because 6642366603 - 2⁵ = 6642366571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6642366607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304888 + ... + 325946.

It is an arithmetic number, because the mean of its divisors is an integer number (565587360).

Almost surely, 2^6642366603 is an apocalyptic number.

6642366603 is a deficient number, since it is larger than the sum of its proper divisors (2407031157).

6642366603 is a wasteful number, since it uses less digits than its factorization.

6642366603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23346.

The product of its (nonzero) digits is 559872, while the sum is 42.

The square root of 6642366603 is about 81500.7153526888. The cubic root of 6642366603 is about 1879.7825502043.

The spelling of 6642366603 in words is "six billion, six hundred forty-two million, three hundred sixty-six thousand, six hundred three".