166736442 has 32 divisors (see below), whose sum is σ = 353808000. Its totient is φ = 52203008.

The previous prime is 166736417. The next prime is 166736443. The reversal of 166736442 is 244637661.

It is a happy number.

166736442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 166736442.

It is not an unprimeable number, because it can be changed into a prime (166736443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59734 + ... + 62462.

It is an arithmetic number, because the mean of its divisors is an integer number (11056500).

Almost surely, 2^166736442 is an apocalyptic number.

166736442 is an abundant number, since it is smaller than the sum of its proper divisors (187071558).

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

166736442 is a wasteful number, since it uses less digits than its factorization.

166736442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3350.

The product of its digits is 145152, while the sum is 39.

The square root of 166736442 is about 12912.6465916171. The cubic root of 166736442 is about 550.3979951259.

The spelling of 166736442 in words is "one hundred sixty-six million, seven hundred thirty-six thousand, four hundred forty-two".