21266044124334 has 32 divisors (see below), whose sum is σ = 43441359768576. Its totient is φ = 6937166215200.

The previous prime is 21266044124333. The next prime is 21266044124417. The reversal of 21266044124334 is 43342144066212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21266044124333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 926242 + ... + 6587109.

It is an arithmetic number, because the mean of its divisors is an integer number (1357542492768).

Almost surely, 2^{21266044124334} is an apocalyptic number.

21266044124334 is an abundant number, since it is smaller than the sum of its proper divisors (22175315644242).

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

21266044124334 is a wasteful number, since it uses less digits than its factorization.

21266044124334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7523440.

The product of its (nonzero) digits is 663552, while the sum is 42.

The spelling of 21266044124334 in words is "twenty-one trillion, two hundred sixty-six billion, forty-four million, one hundred twenty-four thousand, three hundred thirty-four".