21608020414 has 8 divisors (see below), whose sum is σ = 32427091440. Its totient is φ = 10798989936.

The previous prime is 21608020363. The next prime is 21608020453. The reversal of 21608020414 is 41402080612.

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

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2504754 + ... + 2513365.

It is an arithmetic number, because the mean of its divisors is an integer number (4053386430).

Almost surely, 2^21608020414 is an apocalyptic number.

21608020414 is a deficient number, since it is larger than the sum of its proper divisors (10819071026).

21608020414 is a wasteful number, since it uses less digits than its factorization.

21608020414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5020274.

The product of its (nonzero) digits is 3072, while the sum is 28.

The spelling of 21608020414 in words is "twenty-one billion, six hundred eight million, twenty thousand, four hundred fourteen".