20344646544032 has 24 divisors (see below), whose sum is σ = 40084839244800. Its totient is φ = 10164369910464.

The previous prime is 20344646543959. The next prime is 20344646544059. The reversal of 20344646544032 is 23044564644302.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248500982 + ... + 248582837.

It is an arithmetic number, because the mean of its divisors is an integer number (1670201635200).

Almost surely, 2^{20344646544032} is an apocalyptic number.

It is an amenable number.

20344646544032 is a deficient number, since it is larger than the sum of its proper divisors (19740192700768).

20344646544032 is a wasteful number, since it uses less digits than its factorization.

20344646544032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497085108 (or 497085100 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 47.

The spelling of 20344646544032 in words is "twenty trillion, three hundred forty-four billion, six hundred forty-six million, five hundred forty-four thousand, thirty-two".