145563666 has 8 divisors (see below), whose sum is σ = 291127344. Its totient is φ = 48521220.

The previous prime is 145563647. The next prime is 145563689. The reversal of 145563666 is 666365541.

It is a sphenic number, since it is the product of 3 distinct primes.

145563666 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12130300 + ... + 12130311.

It is an arithmetic number, because the mean of its divisors is an integer number (36390918).

Almost surely, 2^145563666 is an apocalyptic number.

145563666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

145563666 is a wasteful number, since it uses less digits than its factorization.

145563666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24260616.

The product of its digits is 388800, while the sum is 42.

The square root of 145563666 is about 12064.9768337946. The cubic root of 145563666 is about 526.0386585051.

The spelling of 145563666 in words is "one hundred forty-five million, five hundred sixty-three thousand, six hundred sixty-six".