42166540134 has 24 divisors (see below), whose sum is σ = 96169302840. Its totient is φ = 13315749408.

The previous prime is 42166540133. The next prime is 42166540187. The reversal of 42166540134 is 43104566124.

42166540134 is a `hidden beast` number, since 4 + 21 + 66 + 540 + 1 + 34 = 666.

42166540134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42166540133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61646647 + ... + 61647330.

It is an arithmetic number, because the mean of its divisors is an integer number (4007054285).

Almost surely, 2^42166540134 is an apocalyptic number.

42166540134 is an abundant number, since it is smaller than the sum of its proper divisors (54002762706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42166540134 is a wasteful number, since it uses less digits than its factorization.

42166540134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123294004 (or 123294001 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 42166540134 in words is "forty-two billion, one hundred sixty-six million, five hundred forty thousand, one hundred thirty-four".