21622023505636 has 24 divisors (see below), whose sum is σ = 37925417376000. Its totient is φ = 10786190859264.

The previous prime is 21622023505633. The next prime is 21622023505669. The reversal of 21622023505636 is 63650532022612.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21622023505592 and 21622023505601.

It is not an unprimeable number, because it can be changed into a prime (21622023505633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191222805 + ... + 191335843.

It is an arithmetic number, because the mean of its divisors is an integer number (1580225724000).

Almost surely, 2^{21622023505636} is an apocalyptic number.

It is an amenable number.

21622023505636 is a deficient number, since it is larger than the sum of its proper divisors (16303393870364).

21622023505636 is a wasteful number, since it uses less digits than its factorization.

21622023505636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222411 (or 222409 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 21622023505636 in words is "twenty-one trillion, six hundred twenty-two billion, twenty-three million, five hundred five thousand, six hundred thirty-six".