108997718956 has 36 divisors (see below), whose sum is σ = 223507890648. Its totient is φ = 46372323648.

The previous prime is 108997718933. The next prime is 108997719023. The reversal of 108997718956 is 659817799801.

It is a super-2 number, since 2×108997718956² (a number of 23 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 2002750 + ... + 2056453.

It is an arithmetic number, because the mean of its divisors is an integer number (6208552518).

Almost surely, 2^108997718956 is an apocalyptic number.

It is an amenable number.

108997718956 is an abundant number, since it is smaller than the sum of its proper divisors (114510171692).

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

108997718956 is a wasteful number, since it uses less digits than its factorization.

108997718956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4059358 (or 4059349 counting only the distinct ones).

The product of its (nonzero) digits is 68584320, while the sum is 70.

The spelling of 108997718956 in words is "one hundred eight billion, nine hundred ninety-seven million, seven hundred eighteen thousand, nine hundred fifty-six".