6635604102420 has 96 divisors (see below), whose sum is σ = 19666830758400. Its totient is φ = 1666997933184.

The previous prime is 6635604102403. The next prime is 6635604102451. The reversal of 6635604102420 is 242014065366.

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 31 ways as a sum of consecutive naturals, for example, 16054894 + ... + 16463013.

It is an arithmetic number, because the mean of its divisors is an integer number (204862820400).

Almost surely, 2^{6635604102420} is an apocalyptic number.

6635604102420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6635604102420 is an abundant number, since it is smaller than the sum of its proper divisors (13031226655980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6635604102420 is a wasteful number, since it uses less digits than its factorization.

6635604102420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32518117 (or 32518115 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

Adding to 6635604102420 its reverse (242014065366), we get a palindrome (6877618167786).

The spelling of 6635604102420 in words is "six trillion, six hundred thirty-five billion, six hundred four million, one hundred two thousand, four hundred twenty".