21603266406622 has 16 divisors (see below), whose sum is σ = 33522826725360. Its totient is φ = 10429002315648.

The previous prime is 21603266406599. The next prime is 21603266406661. The reversal of 21603266406622 is 22660466230612.

It is a super-2 number, since 2×21603266406622² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 967573 + ... + 6643999.

It is an arithmetic number, because the mean of its divisors is an integer number (2095176670335).

Almost surely, 2^{21603266406622} is an apocalyptic number.

21603266406622 is a deficient number, since it is larger than the sum of its proper divisors (11919560318738).

21603266406622 is a wasteful number, since it uses less digits than its factorization.

21603266406622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5742075.

The product of its (nonzero) digits is 1492992, while the sum is 46.

The spelling of 21603266406622 in words is "twenty-one trillion, six hundred three billion, two hundred sixty-six million, four hundred six thousand, six hundred twenty-two".