21141600352 has 48 divisors (see below), whose sum is σ = 43858387440. Its totient is φ = 10004110848.

The previous prime is 21141600313. The next prime is 21141600353. The reversal of 21141600352 is 25300614112.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21141600353) 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, 588738 + ... + 623614.

It is an arithmetic number, because the mean of its divisors is an integer number (913716405).

Almost surely, 2^21141600352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21141600352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21929193720).

21141600352 is an abundant number, since it is smaller than the sum of its proper divisors (22716787088).

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

21141600352 is a wasteful number, since it uses less digits than its factorization.

21141600352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35903 (or 35895 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The spelling of 21141600352 in words is "twenty-one billion, one hundred forty-one million, six hundred thousand, three hundred fifty-two".