21366432041342 has 32 divisors (see below), whose sum is σ = 32393026068480. Its totient is φ = 10569294590400.

The previous prime is 21366432041281. The next prime is 21366432041351. The reversal of 21366432041342 is 24314023466312.

It is a self number, because there is not a number n which added to its sum of digits gives 21366432041342.

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, 968944217 + ... + 968966267.

It is an arithmetic number, because the mean of its divisors is an integer number (1012282064640).

Almost surely, 2^{21366432041342} is an apocalyptic number.

21366432041342 is a deficient number, since it is larger than the sum of its proper divisors (11026594027138).

21366432041342 is a wasteful number, since it uses less digits than its factorization.

21366432041342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34016.

The product of its (nonzero) digits is 497664, while the sum is 41.

The spelling of 21366432041342 in words is "twenty-one trillion, three hundred sixty-six billion, four hundred thirty-two million, forty-one thousand, three hundred forty-two".