21110554462 has 16 divisors (see below), whose sum is σ = 33935653152. Its totient is φ = 9823476960.

The previous prime is 21110554459. The next prime is 21110554471. The reversal of 21110554462 is 26445501112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6199989 + ... + 6203392.

It is an arithmetic number, because the mean of its divisors is an integer number (2120978322).

Almost surely, 2^21110554462 is an apocalyptic number.

21110554462 is a deficient number, since it is larger than the sum of its proper divisors (12825098690).

21110554462 is a wasteful number, since it uses less digits than its factorization.

21110554462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12403443.

The product of its (nonzero) digits is 9600, while the sum is 31.

The spelling of 21110554462 in words is "twenty-one billion, one hundred ten million, five hundred fifty-four thousand, four hundred sixty-two".