21623266264000 has 112 divisors (see below), whose sum is σ = 53629131329280. Its totient is φ = 8636528409600.

The previous prime is 21623266263997. The next prime is 21623266264021. The reversal of 21623266264000 is 46266232612.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3419761 + ... + 7412239.

Almost surely, 2^{21623266264000} is an apocalyptic number.

21623266264000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21623266264000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26814565664640).

21623266264000 is an abundant number, since it is smaller than the sum of its proper divisors (32005865065280).

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

21623266264000 is an equidigital number, since it uses as much as digits as its factorization.

21623266264000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993183 (or 3993163 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 21623266264000 in words is "twenty-one trillion, six hundred twenty-three billion, two hundred sixty-six million, two hundred sixty-four thousand".