20040064260442 has 16 divisors (see below), whose sum is σ = 30065946408000. Its totient is φ = 10018082289600.

The previous prime is 20040064260401. The next prime is 20040064260443. The reversal of 20040064260442 is 24406246004002.

It is a junction number, because it is equal to n+sod(n) for n = 20040064260398 and 20040064260407.

It is not an unprimeable number, because it can be changed into a prime (20040064260443) 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 7 ways as a sum of consecutive naturals, for example, 490568434 + ... + 490609282.

It is an arithmetic number, because the mean of its divisors is an integer number (1879121650500).

Almost surely, 2^{20040064260442} is an apocalyptic number.

20040064260442 is a deficient number, since it is larger than the sum of its proper divisors (10025882147558).

20040064260442 is a wasteful number, since it uses less digits than its factorization.

20040064260442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82581.

The product of its (nonzero) digits is 73728, while the sum is 34.

The spelling of 20040064260442 in words is "twenty trillion, forty billion, sixty-four million, two hundred sixty thousand, four hundred forty-two".