1165670620 has 48 divisors (see below), whose sum is σ = 2594991168. Its totient is φ = 438318080.

The previous prime is 1165670609. The next prime is 1165670629. The reversal of 1165670620 is 260765611.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165670629) 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 15 ways as a sum of consecutive naturals, for example, 400089 + ... + 402991.

It is an arithmetic number, because the mean of its divisors is an integer number (54062316).

Almost surely, 2^1165670620 is an apocalyptic number.

1165670620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1165670620 is an abundant number, since it is smaller than the sum of its proper divisors (1429320548).

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

1165670620 is a wasteful number, since it uses less digits than its factorization.

1165670620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4110 (or 4108 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 1165670620 is about 34141.9188095807. The cubic root of 1165670620 is about 1052.4269243615.

The spelling of 1165670620 in words is "one billion, one hundred sixty-five million, six hundred seventy thousand, six hundred twenty".