117106221555 has 128 divisors (see below), whose sum is σ = 225567513600. Its totient is φ = 57442867200.

The previous prime is 117106221487. The next prime is 117106221569. The reversal of 117106221555 is 555122601711.

117106221555 is a `hidden beast` number, since 1 + 1 + 7 + 10 + 622 + 15 + 5 + 5 = 666.

It is not a de Polignac number, because 117106221555 - 2¹⁰ = 117106220531 is a prime.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 54189675 + ... + 54191835.

It is an arithmetic number, because the mean of its divisors is an integer number (1762246200).

Almost surely, 2^117106221555 is an apocalyptic number.

117106221555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117106221555 is a deficient number, since it is larger than the sum of its proper divisors (108461292045).

117106221555 is a wasteful number, since it uses less digits than its factorization.

117106221555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802 (or 2796 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 36.

The spelling of 117106221555 in words is "one hundred seventeen billion, one hundred six million, two hundred twenty-one thousand, five hundred fifty-five".