21604635006030 has 64 divisors (see below), whose sum is σ = 57619293065280. Its totient is φ = 5760542696832.

The previous prime is 21604635005927. The next prime is 21604635006041. The reversal of 21604635006030 is 3060053640612.

21604635006030 is a `hidden beast` number, since 2 + 1 + 6 + 0 + 4 + 63 + 500 + 60 + 30 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2564869 + ... + 7056048.

It is an arithmetic number, because the mean of its divisors is an integer number (900301454145).

Almost surely, 2^{21604635006030} is an apocalyptic number.

21604635006030 is an abundant number, since it is smaller than the sum of its proper divisors (36014658059250).

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

21604635006030 is a wasteful number, since it uses less digits than its factorization.

21604635006030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9629250 (or 9629244 counting only the distinct ones).

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

Adding to 21604635006030 its reverse (3060053640612), we get a palindrome (24664688646642).

The spelling of 21604635006030 in words is "twenty-one trillion, six hundred four billion, six hundred thirty-five million, six thousand, thirty".