21339416497635 has 96 divisors (see below), whose sum is σ = 37931373095616. Its totient is φ = 11092032000000.

The previous prime is 21339416497543. The next prime is 21339416497661. The reversal of 21339416497635 is 53679461493312.

21339416497635 is a `hidden beast` number, since 2 + 13 + 3 + 94 + 16 + 497 + 6 + 35 = 666.

It is not a de Polignac number, because 21339416497635 - 2¹⁷ = 21339416366563 is a prime.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 3048049135 + ... + 3048056135.

It is an arithmetic number, because the mean of its divisors is an integer number (395118469746).

Almost surely, 2^{21339416497635} is an apocalyptic number.

21339416497635 is a deficient number, since it is larger than the sum of its proper divisors (16591956597981).

21339416497635 is a wasteful number, since it uses less digits than its factorization.

21339416497635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10277 (or 10274 counting only the distinct ones).

The product of its digits is 88179840, while the sum is 63.

The spelling of 21339416497635 in words is "twenty-one trillion, three hundred thirty-nine billion, four hundred sixteen million, four hundred ninety-seven thousand, six hundred thirty-five".