145666066 has 32 divisors (see below), whose sum is σ = 274659840. Its totient is φ = 56396736.

The previous prime is 145666063. The next prime is 145666067. The reversal of 145666066 is 660666541.

It is not an unprimeable number, because it can be changed into a prime (145666063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40 + ... + 17068.

It is an arithmetic number, because the mean of its divisors is an integer number (8583120).

Almost surely, 2^145666066 is an apocalyptic number.

145666066 is a deficient number, since it is larger than the sum of its proper divisors (128993774).

145666066 is a wasteful number, since it uses less digits than its factorization.

145666066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17098.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 145666066 is about 12069.2197759424. The cubic root of 145666066 is about 526.1619807917.

The spelling of 145666066 in words is "one hundred forty-five million, six hundred sixty-six thousand, sixty-six".