2150565615 has 96 divisors (see below), whose sum is σ = 4321512000. Its totient is φ = 979292160.

The previous prime is 2150565589. The next prime is 2150565631. The reversal of 2150565615 is 5165650512.

It is not a de Polignac number, because 2150565615 - 2⁸ = 2150565359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2150565615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 529111 + ... + 533159.

It is an arithmetic number, because the mean of its divisors is an integer number (45015750).

Almost surely, 2^2150565615 is an apocalyptic number.

2150565615 is an abundant number, since it is smaller than the sum of its proper divisors (2170946385).

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

2150565615 is a wasteful number, since it uses less digits than its factorization.

2150565615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4137 (or 4134 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

The square root of 2150565615 is about 46374.1912597945. The cubic root of 2150565615 is about 1290.7760518799.

It can be divided in two parts, 2150 and 565615, that added together give a palindrome (567765).

The spelling of 2150565615 in words is "two billion, one hundred fifty million, five hundred sixty-five thousand, six hundred fifteen".