42165500541 has 16 divisors (see below), whose sum is σ = 57181049280. Its totient is φ = 27633795200.

The previous prime is 42165500521. The next prime is 42165500579. The reversal of 42165500541 is 14500556124.

It is a cyclic number.

It is not a de Polignac number, because 42165500541 - 2¹⁷ = 42165369469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42165500521) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 410235 + ... + 502616.

It is an arithmetic number, because the mean of its divisors is an integer number (3573815580).

Almost surely, 2^42165500541 is an apocalyptic number.

It is an amenable number.

42165500541 is a deficient number, since it is larger than the sum of its proper divisors (15015548739).

42165500541 is a wasteful number, since it uses less digits than its factorization.

42165500541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913116.

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 42165500541 in words is "forty-two billion, one hundred sixty-five million, five hundred thousand, five hundred forty-one".