21345055014 has 8 divisors (see below), whose sum is σ = 42690110040. Its totient is φ = 7115018336.

The previous prime is 21345055009. The next prime is 21345055021. The reversal of 21345055014 is 41055054312.

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

21345055014 is an admirable number.

It is a super-2 number, since 2×21345055014² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1778754579 + ... + 1778754590.

It is an arithmetic number, because the mean of its divisors is an integer number (5336263755).

Almost surely, 2^21345055014 is an apocalyptic number.

21345055014 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.

21345055014 is a wasteful number, since it uses less digits than its factorization.

21345055014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3557509174.

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 21345055014 in words is "twenty-one billion, three hundred forty-five million, fifty-five thousand, fourteen".