166370442 has 32 divisors (see below), whose sum is σ = 386726400. Its totient is φ = 46728048.

The previous prime is 166370411. The next prime is 166370443. The reversal of 166370442 is 244073661.

It is a happy number.

166370442 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 (166370443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31092 + ... + 36047.

It is an arithmetic number, because the mean of its divisors is an integer number (12085200).

Almost surely, 2^166370442 is an apocalyptic number.

166370442 is an abundant number, since it is smaller than the sum of its proper divisors (220355958).

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

166370442 is a wasteful number, since it uses less digits than its factorization.

166370442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67210.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 166370442 is about 12898.4666530561. The cubic root of 166370442 is about 549.9949773646.

The spelling of 166370442 in words is "one hundred sixty-six million, three hundred seventy thousand, four hundred forty-two".