21343236360 has 64 divisors (see below), whose sum is σ = 64116619200. Its totient is φ = 5683804416.

The previous prime is 21343236349. The next prime is 21343236391. The reversal of 21343236360 is 6363234312.

It is a happy 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, 31659 + ... + 209018.

It is an arithmetic number, because the mean of its divisors is an integer number (1001822175).

Almost surely, 2^21343236360 is an apocalyptic number.

21343236360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21343236360 is an abundant number, since it is smaller than the sum of its proper divisors (42773382840).

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

21343236360 is a wasteful number, since it uses less digits than its factorization.

21343236360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241430 (or 241426 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 33.

The spelling of 21343236360 in words is "twenty-one billion, three hundred forty-three million, two hundred thirty-six thousand, three hundred sixty".