6631625403 has 36 divisors (see below), whose sum is σ = 10652971680. Its totient is φ = 3970669248.

The previous prime is 6631625333. The next prime is 6631625417. The reversal of 6631625403 is 3045261366.

It is not a de Polignac number, because 6631625403 - 2¹⁰ = 6631624379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6631625303) 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 35 ways as a sum of consecutive naturals, for example, 2643 + ... + 115196.

It is an arithmetic number, because the mean of its divisors is an integer number (295915880).

Almost surely, 2^6631625403 is an apocalyptic number.

6631625403 is a deficient number, since it is larger than the sum of its proper divisors (4021346277).

6631625403 is a wasteful number, since it uses less digits than its factorization.

6631625403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117908 (or 117892 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 6631625403 is about 81434.7923371823. The cubic root of 6631625403 is about 1878.7687542268.

Adding to 6631625403 its reverse (3045261366), we get a palindrome (9676886769).

It can be divided in two parts, 66316 and 25403, that added together give a palindrome (91719).

The spelling of 6631625403 in words is "six billion, six hundred thirty-one million, six hundred twenty-five thousand, four hundred three".