117165440 has 64 divisors (see below), whose sum is σ = 320124960. Its totient is φ = 40169472.

The previous prime is 117165437. The next prime is 117165443. The reversal of 117165440 is 44561711.

It is an interprime number because it is at equal distance from previous prime (117165437) and next prime (117165443).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117165443) 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, 8597 + ... + 17556.

Almost surely, 2^117165440 is an apocalyptic number.

117165440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117165440 is an abundant number, since it is smaller than the sum of its proper divisors (202959520).

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

117165440 is an equidigital number, since it uses as much as digits as its factorization.

117165440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26179 (or 26167 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 117165440 is about 10824.2985915947. The cubic root of 117165440 is about 489.3277467373.

The spelling of 117165440 in words is "one hundred seventeen million, one hundred sixty-five thousand, four hundred forty".