145504666 has 16 divisors (see below), whose sum is σ = 231448320. Its totient is φ = 68368320.

The previous prime is 145504661. The next prime is 145504673. The reversal of 145504666 is 666405541.

It is not an unprimeable number, because it can be changed into a prime (145504661) 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 7 ways as a sum of consecutive naturals, for example, 22231 + ... + 28021.

It is an arithmetic number, because the mean of its divisors is an integer number (14465520).

Almost surely, 2^145504666 is an apocalyptic number.

145504666 is a deficient number, since it is larger than the sum of its proper divisors (85943654).

145504666 is a wasteful number, since it uses less digits than its factorization.

145504666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6549.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 145504666 is about 12062.5314921869. The cubic root of 145504666 is about 525.9675774085.

The spelling of 145504666 in words is "one hundred forty-five million, five hundred four thousand, six hundred sixty-six".