21412096655 has 16 divisors (see below), whose sum is σ = 26397584640. Its totient is φ = 16661267712.

The previous prime is 21412096631. The next prime is 21412096661. The reversal of 21412096655 is 55669021412.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21412096655 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 604187 + ... + 638643.

It is an arithmetic number, because the mean of its divisors is an integer number (1649849040).

Almost surely, 2^21412096655 is an apocalyptic number.

21412096655 is a deficient number, since it is larger than the sum of its proper divisors (4985487985).

21412096655 is a wasteful number, since it uses less digits than its factorization.

21412096655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37858.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 21412096655 in words is "twenty-one billion, four hundred twelve million, ninety-six thousand, six hundred fifty-five".