21067602000 has 160 divisors (see below), whose sum is σ = 69074328960. Its totient is φ = 5522713600.

The previous prime is 21067601999. The next prime is 21067602041. The reversal of 21067602000 is 20676012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 324244 + ... + 383756.

It is an arithmetic number, because the mean of its divisors is an integer number (431714556).

Almost surely, 2^21067602000 is an apocalyptic number.

21067602000 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 21067602000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34537164480).

21067602000 is an abundant number, since it is smaller than the sum of its proper divisors (48006726960).

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

21067602000 is a wasteful number, since it uses less digits than its factorization.

21067602000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59598 (or 59582 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The spelling of 21067602000 in words is "twenty-one billion, sixty-seven million, six hundred two thousand".