660234146 has 32 divisors (see below), whose sum is σ = 1174219200. Its totient is φ = 274466880.

The previous prime is 660234139. The next prime is 660234149. The reversal of 660234146 is 641432066.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (660234149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20585 + ... + 41763.

It is an arithmetic number, because the mean of its divisors is an integer number (36694350).

Almost surely, 2^660234146 is an apocalyptic number.

660234146 is a deficient number, since it is larger than the sum of its proper divisors (513985054).

660234146 is a wasteful number, since it uses less digits than its factorization.

660234146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21314.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 660234146 is about 25695.0218135731. The cubic root of 660234146 is about 870.7617171806.

The spelling of 660234146 in words is "six hundred sixty million, two hundred thirty-four thousand, one hundred forty-six".