1165390667 has 6 divisors (see below), whose sum is σ = 1355658588. Its totient is φ = 998906244.

The previous prime is 1165390651. The next prime is 1165390693. The reversal of 1165390667 is 7660935611.

It is not a de Polignac number, because 1165390667 - 2⁴ = 1165390651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1165390627) 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 5 ways as a sum of consecutive naturals, for example, 11891693 + ... + 11891790.

It is an arithmetic number, because the mean of its divisors is an integer number (225943098).

Almost surely, 2^1165390667 is an apocalyptic number.

1165390667 is a deficient number, since it is larger than the sum of its proper divisors (190267921).

1165390667 is an equidigital number, since it uses as much as digits as its factorization.

1165390667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23783497 (or 23783490 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 1165390667 is about 34137.8187205920. The cubic root of 1165390667 is about 1052.3426656640.

The spelling of 1165390667 in words is "one billion, one hundred sixty-five million, three hundred ninety thousand, six hundred sixty-seven".