21604343314 has 8 divisors (see below), whose sum is σ = 32410106928. Its totient is φ = 10800974340.

The previous prime is 21604343303. The next prime is 21604343317. The reversal of 21604343314 is 41334340612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21604343317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575932 + ... + 612295.

It is an arithmetic number, because the mean of its divisors is an integer number (4051263366).

Almost surely, 2^21604343314 is an apocalyptic number.

21604343314 is a deficient number, since it is larger than the sum of its proper divisors (10805763614).

21604343314 is a wasteful number, since it uses less digits than its factorization.

21604343314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197320.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 21604343314 its reverse (41334340612), we get a palindrome (62938683926).

The spelling of 21604343314 in words is "twenty-one billion, six hundred four million, three hundred forty-three thousand, three hundred fourteen".