2165157562 has 4 divisors (see below), whose sum is σ = 3247736346. Its totient is φ = 1082578780.

The previous prime is 2165157529. The next prime is 2165157619. The reversal of 2165157562 is 2657515612.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2020412601 + 144744961 = 44949^2 + 12031^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541289389 + ... + 541289392.

Almost surely, 2^2165157562 is an apocalyptic number.

2165157562 is a deficient number, since it is larger than the sum of its proper divisors (1082578784).

2165157562 is a wasteful number, since it uses less digits than its factorization.

2165157562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082578783.

The product of its digits is 126000, while the sum is 40.

The square root of 2165157562 is about 46531.2536044324. The cubic root of 2165157562 is about 1293.6888508925.

The spelling of 2165157562 in words is "two billion, one hundred sixty-five million, one hundred fifty-seven thousand, five hundred sixty-two".