42165560111 has 4 divisors (see below), whose sum is σ = 42268654800. Its totient is φ = 42062465424.

The previous prime is 42165560089. The next prime is 42165560113. The reversal of 42165560111 is 11106556124.

42165560111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42165560111 - 2¹⁴ = 42165543727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42165560113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51546731 + ... + 51547548.

It is an arithmetic number, because the mean of its divisors is an integer number (10567163700).

Almost surely, 2^42165560111 is an apocalyptic number.

42165560111 is a deficient number, since it is larger than the sum of its proper divisors (103094689).

42165560111 is a wasteful number, since it uses less digits than its factorization.

42165560111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103094688.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 42165560111 in words is "forty-two billion, one hundred sixty-five million, five hundred sixty thousand, one hundred eleven".