166042434 has 16 divisors (see below), whose sum is σ = 351619488. Its totient is φ = 52091712.

The previous prime is 166042423. The next prime is 166042439. The reversal of 166042434 is 434240661.

166042434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (166042439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 813832 + ... + 814035.

It is an arithmetic number, because the mean of its divisors is an integer number (21976218).

Almost surely, 2^166042434 is an apocalyptic number.

166042434 is an abundant number, since it is smaller than the sum of its proper divisors (185577054).

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

166042434 is a wasteful number, since it uses less digits than its factorization.

166042434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627889.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 166042434 is about 12885.7453800702. The cubic root of 166042434 is about 549.6332916425.

The spelling of 166042434 in words is "one hundred sixty-six million, forty-two thousand, four hundred thirty-four".