1065161155 has 16 divisors (see below), whose sum is σ = 1323292320. Its totient is φ = 822108672.

The previous prime is 1065161117. The next prime is 1065161219. The reversal of 1065161155 is 5511615601.

It is a cyclic number.

It is not a de Polignac number, because 1065161155 - 2⁹ = 1065160643 is a prime.

It is a super-2 number, since 2×1065161155² = 2269136572241868050, which contains 22 as substring.

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, 286267 + ... + 289963.

It is an arithmetic number, because the mean of its divisors is an integer number (82705770).

Almost surely, 2^1065161155 is an apocalyptic number.

1065161155 is a deficient number, since it is larger than the sum of its proper divisors (258131165).

1065161155 is a wasteful number, since it uses less digits than its factorization.

1065161155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5718.

The product of its (nonzero) digits is 4500, while the sum is 31.

The square root of 1065161155 is about 32636.8067524995. The cubic root of 1065161155 is about 1021.2649802768.

Adding to 1065161155 its reverse (5511615601), we get a palindrome (6576776756).

The spelling of 1065161155 in words is "one billion, sixty-five million, one hundred sixty-one thousand, one hundred fifty-five".