117681110157 has 8 divisors (see below), whose sum is σ = 168978004384. Its totient is φ = 72419144688.

The previous prime is 117681110153. The next prime is 117681110167. The reversal of 117681110157 is 751011186711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117681110157 - 2² = 117681110153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 3017464363 = 117681110157 / (1 + 1 + 7 + 6 + 8 + 1 + 1 + 1 + 0 + 1 + 5 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117681110153) 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, 1508732143 + ... + 1508732220.

It is an arithmetic number, because the mean of its divisors is an integer number (21122250548).

Almost surely, 2^117681110157 is an apocalyptic number.

It is an amenable number.

117681110157 is a deficient number, since it is larger than the sum of its proper divisors (51296894227).

117681110157 is a wasteful number, since it uses less digits than its factorization.

117681110157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017464379.

The product of its (nonzero) digits is 11760, while the sum is 39.

Adding to 117681110157 its reverse (751011186711), we get a palindrome (868692296868).

The spelling of 117681110157 in words is "one hundred seventeen billion, six hundred eighty-one million, one hundred ten thousand, one hundred fifty-seven".