21014616306 has 8 divisors (see below), whose sum is σ = 42029232624. Its totient is φ = 7004872100.

The previous prime is 21014616299. The next prime is 21014616307. The reversal of 21014616306 is 60361641012.

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

21014616306 is an admirable number.

It is a super-2 number, since 2×21014616306² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21014616307) 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, 1751218020 + ... + 1751218031.

It is an arithmetic number, because the mean of its divisors is an integer number (5253654078).

Almost surely, 2^21014616306 is an apocalyptic number.

21014616306 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21014616306 is a wasteful number, since it uses less digits than its factorization.

21014616306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3502436056.

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 21014616306 in words is "twenty-one billion, fourteen million, six hundred sixteen thousand, three hundred six".