21446566714 has 8 divisors (see below), whose sum is σ = 32173604928. Its totient is φ = 10722031740.

The previous prime is 21446566697. The next prime is 21446566717. The reversal of 21446566714 is 41766564412.

It is a happy number.

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 (21446566717) 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, 604242 + ... + 638749.

It is an arithmetic number, because the mean of its divisors is an integer number (4021700616).

Almost surely, 2^21446566714 is an apocalyptic number.

21446566714 is a deficient number, since it is larger than the sum of its proper divisors (10727038214).

21446566714 is a wasteful number, since it uses less digits than its factorization.

21446566714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251620.

The product of its digits is 967680, while the sum is 46.

The spelling of 21446566714 in words is "twenty-one billion, four hundred forty-six million, five hundred sixty-six thousand, seven hundred fourteen".