21612105062334 has 64 divisors (see below), whose sum is σ = 48065883840000. Its totient is φ = 7198188845760.

The previous prime is 21612105062329. The next prime is 21612105062381. The reversal of 21612105062334 is 43326050121612.

21612105062334 is a `hidden beast` number, since 2 + 1 + 6 + 1 + 21 + 0 + 5 + 0 + 623 + 3 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 807644047 + ... + 807670805.

It is an arithmetic number, because the mean of its divisors is an integer number (751029435000).

Almost surely, 2^{21612105062334} is an apocalyptic number.

21612105062334 is an abundant number, since it is smaller than the sum of its proper divisors (26453778777666).

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

21612105062334 is a wasteful number, since it uses less digits than its factorization.

21612105062334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38350 (or 38344 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 21612105062334 its reverse (43326050121612), we get a palindrome (64938155183946).

The spelling of 21612105062334 in words is "twenty-one trillion, six hundred twelve billion, one hundred five million, sixty-two thousand, three hundred thirty-four".