21623056027072 has 28 divisors (see below), whose sum is σ = 43029804969936. Its totient is φ = 10780900444160.

The previous prime is 21623056027039. The next prime is 21623056027081. The reversal of 21623056027072 is 27072065032612.

It is a congruent number.

It is an unprimeable number.

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, 478533004 + ... + 478578187.

Almost surely, 2^{21623056027072} is an apocalyptic number.

It is an amenable number.

21623056027072 is a deficient number, since it is larger than the sum of its proper divisors (21406748942864).

21623056027072 is an equidigital number, since it uses as much as digits as its factorization.

21623056027072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957111556 (or 957111546 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 21623056027072 in words is "twenty-one trillion, six hundred twenty-three billion, fifty-six million, twenty-seven thousand, seventy-two".