42663656041 has 16 divisors (see below), whose sum is σ = 45106790400. Its totient is φ = 40270106448.

The previous prime is 42663656033. The next prime is 42663656051. The reversal of 42663656041 is 14065636624.

It is a cyclic number.

It is not a de Polignac number, because 42663656041 - 2³ = 42663656033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42663656051) 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, 4004800 + ... + 4015438.

It is an arithmetic number, because the mean of its divisors is an integer number (2819174400).

Almost surely, 2^42663656041 is an apocalyptic number.

It is an amenable number.

42663656041 is a deficient number, since it is larger than the sum of its proper divisors (2443134359).

42663656041 is a wasteful number, since it uses less digits than its factorization.

42663656041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12948.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 42663656041 in words is "forty-two billion, six hundred sixty-three million, six hundred fifty-six thousand, forty-one".