21616220333632 has 28 divisors (see below), whose sum is σ = 42895060540416. Its totient is φ = 10808016103040.

The previous prime is 21616220333621. The next prime is 21616220333633. The reversal of 21616220333632 is 23633302261612.

It is a super-2 number, since 2×21616220333632² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21616220333633) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6256257 + ... + 9075967.

It is an arithmetic number, because the mean of its divisors is an integer number (1531966447872).

Almost surely, 2^{21616220333632} is an apocalyptic number.

It is an amenable number.

21616220333632 is a deficient number, since it is larger than the sum of its proper divisors (21278840206784).

21616220333632 is a wasteful number, since it uses less digits than its factorization.

21616220333632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939506 (or 2939496 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 40.

The spelling of 21616220333632 in words is "twenty-one trillion, six hundred sixteen billion, two hundred twenty million, three hundred thirty-three thousand, six hundred thirty-two".