1165655097 has 8 divisors (see below), whose sum is σ = 1726896480. Its totient is φ = 777103380.

The previous prime is 1165655083. The next prime is 1165655171. The reversal of 1165655097 is 7905565611.

1165655097 is a `hidden beast` number, since 1 + 1 + 6 + 5 + 6 + 550 + 97 = 666.

It is not a de Polignac number, because 1165655097 - 2¹² = 1165651001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1165655027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21586179 + ... + 21586232.

It is an arithmetic number, because the mean of its divisors is an integer number (215862060).

Almost surely, 2^1165655097 is an apocalyptic number.

It is an amenable number.

1165655097 is a deficient number, since it is larger than the sum of its proper divisors (561241383).

1165655097 is an equidigital number, since it uses as much as digits as its factorization.

1165655097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43172420 (or 43172414 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 45.

The square root of 1165655097 is about 34141.6914783085. The cubic root of 1165655097 is about 1052.4222526886.

The spelling of 1165655097 in words is "one billion, one hundred sixty-five million, six hundred fifty-five thousand, ninety-seven".