1165850790 has 64 divisors (see below), whose sum is σ = 3110510592. Its totient is φ = 277718400.

The previous prime is 1165850771. The next prime is 1165850801. The reversal of 1165850790 is 970585611.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 36126 + ... + 60305.

It is an arithmetic number, because the mean of its divisors is an integer number (48601728).

Almost surely, 2^1165850790 is an apocalyptic number.

1165850790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1165850790 is an abundant number, since it is smaller than the sum of its proper divisors (1944659802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1165850790 is a wasteful number, since it uses less digits than its factorization.

1165850790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96485.

The product of its (nonzero) digits is 75600, while the sum is 42.

The square root of 1165850790 is about 34144.5572529503. The cubic root of 1165850790 is about 1052.4811437917.

The spelling of 1165850790 in words is "one billion, one hundred sixty-five million, eight hundred fifty thousand, seven hundred ninety".