1156335165 has 48 divisors (see below), whose sum is σ = 2032737408. Its totient is φ = 608024448.

The previous prime is 1156335149. The next prime is 1156335209. The reversal of 1156335165 is 5615336511.

1156335165 is a `hidden beast` number, since 1 + 1 + 5 + 633 + 5 + 16 + 5 = 666.

It is not a de Polignac number, because 1156335165 - 2⁴ = 1156335149 is a prime.

It is a super-2 number, since 2×1156335165² = 2674222027631154450, 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 47 ways as a sum of consecutive naturals, for example, 1468902 + ... + 1469688.

It is an arithmetic number, because the mean of its divisors is an integer number (42348696).

Almost surely, 2^1156335165 is an apocalyptic number.

1156335165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1156335165 is a deficient number, since it is larger than the sum of its proper divisors (876402243).

1156335165 is a wasteful number, since it uses less digits than its factorization.

1156335165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218 (or 1215 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 1156335165 is about 34004.9285398455. The cubic root of 1156335165 is about 1049.6098822842.

The spelling of 1156335165 in words is "one billion, one hundred fifty-six million, three hundred thirty-five thousand, one hundred sixty-five".