1165343620 has 24 divisors (see below), whose sum is σ = 2796825024. Its totient is φ = 399546336.

The previous prime is 1165343617. The next prime is 1165343623. The reversal of 1165343620 is 263435611.

1165343620 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1165343617) and next prime (1165343623).

It is not an unprimeable number, because it can be changed into a prime (1165343623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4161802 + ... + 4162081.

It is an arithmetic number, because the mean of its divisors is an integer number (116534376).

Almost surely, 2^1165343620 is an apocalyptic number.

1165343620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1165343620 is an abundant number, since it is smaller than the sum of its proper divisors (1631481404).

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

1165343620 is a wasteful number, since it uses less digits than its factorization.

1165343620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8323899 (or 8323897 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1165343620 is about 34137.1296391480. The cubic root of 1165343620 is about 1052.3285043951.

The spelling of 1165343620 in words is "one billion, one hundred sixty-five million, three hundred forty-three thousand, six hundred twenty".