1006161565 has 16 divisors (see below), whose sum is σ = 1269105408. Its totient is φ = 764300416.

The previous prime is 1006161551. The next prime is 1006161589. The reversal of 1006161565 is 5651616001.

It is a cyclic number.

It is not a de Polignac number, because 1006161565 - 2⁹ = 1006161053 is a prime.

It is a super-2 number, since 2×1006161565² = 2024722189766498450, which contains 22 as substring.

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, 16177 + ... + 47686.

It is an arithmetic number, because the mean of its divisors is an integer number (79319088).

Almost surely, 2^1006161565 is an apocalyptic number.

It is an amenable number.

1006161565 is a deficient number, since it is larger than the sum of its proper divisors (262943843).

1006161565 is a wasteful number, since it uses less digits than its factorization.

1006161565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64028.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 1006161565 is about 31720.0498896203. The cubic root of 1006161565 is about 1002.0496510603.

Adding to 1006161565 its reverse (5651616001), we get a palindrome (6657777566).

The spelling of 1006161565 in words is "one billion, six million, one hundred sixty-one thousand, five hundred sixty-five".