6642103501 has 32 divisors (see below), whose sum is σ = 7447873536. Its totient is φ = 5873280000.

The previous prime is 6642103441. The next prime is 6642103529. The reversal of 6642103501 is 1053012466.

6642103501 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 6642103501 - 2⁷ = 6642103373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6642103501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642103571) 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 31 ways as a sum of consecutive naturals, for example, 23978575 + ... + 23978851.

It is an arithmetic number, because the mean of its divisors is an integer number (232746048).

Almost surely, 2^6642103501 is an apocalyptic number.

It is an amenable number.

6642103501 is a deficient number, since it is larger than the sum of its proper divisors (805770035).

6642103501 is a wasteful number, since it uses less digits than its factorization.

6642103501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 6642103501 is about 81499.1012281731. The cubic root of 6642103501 is about 1879.7577306830.

Adding to 6642103501 its reverse (1053012466), we get a palindrome (7695115967).

The spelling of 6642103501 in words is "six billion, six hundred forty-two million, one hundred three thousand, five hundred one".