21670113024 has 432 divisors, whose sum is σ = 74690703360. Its totient is φ = 5912248320.

The previous prime is 21670113013. The next prime is 21670113089. The reversal of 21670113024 is 42031107612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44496909 + ... + 44497395.

Almost surely, 2^21670113024 is an apocalyptic number.

21670113024 is a gapful number since it is divisible by the number (24) 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 21670113024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37345351680).

21670113024 is an abundant number, since it is smaller than the sum of its proper divisors (53020590336).

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

21670113024 is a wasteful number, since it uses less digits than its factorization.

21670113024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The spelling of 21670113024 in words is "twenty-one billion, six hundred seventy million, one hundred thirteen thousand, twenty-four".