1165233620 has 48 divisors (see below), whose sum is σ = 2498646528. Its totient is φ = 456293760.

The previous prime is 1165233617. The next prime is 1165233661. The reversal of 1165233620 is 263325611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642515 + ... + 644325.

It is an arithmetic number, because the mean of its divisors is an integer number (52055136).

Almost surely, 2^1165233620 is an apocalyptic number.

1165233620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1165233620 is an abundant number, since it is smaller than the sum of its proper divisors (1333412908).

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

1165233620 is a wasteful number, since it uses less digits than its factorization.

1165233620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480 (or 2478 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 1165233620 is about 34135.5184521929. The cubic root of 1165233620 is about 1052.2953926228.

The spelling of 1165233620 in words is "one billion, one hundred sixty-five million, two hundred thirty-three thousand, six hundred twenty".