21163144326606 has 12 divisors (see below), whose sum is σ = 45853479374352. Its totient is φ = 7054381442196.

The previous prime is 21163144326557. The next prime is 21163144326763. The reversal of 21163144326606 is 60662344136112.

21163144326606 is a `hidden beast` number, since 2 + 1 + 1 + 6 + 3 + 1 + 4 + 4 + 32 + 6 + 606 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 587865120166 + ... + 587865120201.

It is an arithmetic number, because the mean of its divisors is an integer number (3821123281196).

Almost surely, 2^{21163144326606} is an apocalyptic number.

21163144326606 is an abundant number, since it is smaller than the sum of its proper divisors (24690335047746).

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

21163144326606 is a wasteful number, since it uses less digits than its factorization.

21163144326606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175730240375 (or 1175730240372 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 21163144326606 in words is "twenty-one trillion, one hundred sixty-three billion, one hundred forty-four million, three hundred twenty-six thousand, six hundred six".