21452246116 has 24 divisors (see below), whose sum is σ = 43075440576. Its totient is φ = 9157188000.

The previous prime is 21452246107. The next prime is 21452246129. The reversal of 21452246116 is 61164225412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1519171 + ... + 1533226.

It is an arithmetic number, because the mean of its divisors is an integer number (1794810024).

Almost surely, 2^21452246116 is an apocalyptic number.

It is an amenable number.

21452246116 is an abundant number, since it is smaller than the sum of its proper divisors (21623194460).

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

21452246116 is a wasteful number, since it uses less digits than its factorization.

21452246116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052659 (or 3052657 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The spelling of 21452246116 in words is "twenty-one billion, four hundred fifty-two million, two hundred forty-six thousand, one hundred sixteen".