117161655 has 64 divisors (see below), whose sum is σ = 213276672. Its totient is φ = 54489600.

The previous prime is 117161651. The next prime is 117161659. The reversal of 117161655 is 556161711.

It is an interprime number because it is at equal distance from previous prime (117161651) and next prime (117161659).

It is not a de Polignac number, because 117161655 - 2² = 117161651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117161651) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 677149 + ... + 677321.

It is an arithmetic number, because the mean of its divisors is an integer number (3332448).

Almost surely, 2^117161655 is an apocalyptic number.

117161655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117161655 is a deficient number, since it is larger than the sum of its proper divisors (96115017).

117161655 is a wasteful number, since it uses less digits than its factorization.

117161655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368.

The product of its digits is 6300, while the sum is 33.

The square root of 117161655 is about 10824.1237520642. The cubic root of 117161655 is about 489.3224774774.

It can be divided in two parts, 1171 and 61655, that added together give a palindrome (62826).

The spelling of 117161655 in words is "one hundred seventeen million, one hundred sixty-one thousand, six hundred fifty-five".