1162216565 has 16 divisors (see below), whose sum is σ = 1456558848. Its totient is φ = 888577536.

The previous prime is 1162216541. The next prime is 1162216571. The reversal of 1162216565 is 5656122611.

It is a cyclic number.

It is not a de Polignac number, because 1162216565 - 2⁶ = 1162216501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153509 + ... + 160901.

It is an arithmetic number, because the mean of its divisors is an integer number (91034928).

Almost surely, 2^1162216565 is an apocalyptic number.

It is an amenable number.

1162216565 is a deficient number, since it is larger than the sum of its proper divisors (294342283).

1162216565 is a wasteful number, since it uses less digits than its factorization.

1162216565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8788.

The product of its digits is 21600, while the sum is 35.

The square root of 1162216565 is about 34091.2974965753. The cubic root of 1162216565 is about 1051.3863968955.

The spelling of 1162216565 in words is "one billion, one hundred sixty-two million, two hundred sixteen thousand, five hundred sixty-five".