150005566 has 4 divisors (see below), whose sum is σ = 225008352. Its totient is φ = 75002782.

The previous prime is 150005561. The next prime is 150005567. The reversal of 150005566 is 665500051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 665500051 = 241 ⋅2761411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150005561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37501390 + ... + 37501393.

It is an arithmetic number, because the mean of its divisors is an integer number (56252088).

Almost surely, 2^150005566 is an apocalyptic number.

150005566 is a deficient number, since it is larger than the sum of its proper divisors (75002786).

150005566 is an equidigital number, since it uses as much as digits as its factorization.

150005566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75002785.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 150005566 is about 12247.6759428065. The cubic root of 150005566 is about 531.3358564629.

The spelling of 150005566 in words is "one hundred fifty million, five thousand, five hundred sixty-six".