150665565 has 16 divisors (see below), whose sum is σ = 241560000. Its totient is φ = 80189952.

The previous prime is 150665551. The next prime is 150665569. The reversal of 150665565 is 565566051.

It is not a de Polignac number, because 150665565 - 2⁵ = 150665533 is a prime.

It is a super-2 number, since 2×150665565² = 45400224953538450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150665569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2580 + ... + 17549.

It is an arithmetic number, because the mean of its divisors is an integer number (15097500).

Almost surely, 2^150665565 is an apocalyptic number.

150665565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

150665565 is a deficient number, since it is larger than the sum of its proper divisors (90894435).

150665565 is a wasteful number, since it uses less digits than its factorization.

150665565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20636.

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 150665565 is about 12274.5902171926. The cubic root of 150665565 is about 532.1139788670.

The spelling of 150665565 in words is "one hundred fifty million, six hundred sixty-five thousand, five hundred sixty-five".