181707700068 has 18 divisors (see below), whose sum is σ = 459316686374. Its totient is φ = 60569233344.

The previous prime is 181707700061. The next prime is 181707700073. The reversal of 181707700068 is 860007707181.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 168147563364 + 13560136704 = 410058^2 + 116448^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 181707699996 and 181707700032.

It is not an unprimeable number, because it can be changed into a prime (181707700061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2523718021 + ... + 2523718092.

Almost surely, 2^181707700068 is an apocalyptic number.

181707700068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

181707700068 is an abundant number, since it is smaller than the sum of its proper divisors (277608986306).

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

181707700068 is a wasteful number, since it uses less digits than its factorization.

181707700068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5047436123 (or 5047436118 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 45.

The spelling of 181707700068 in words is "one hundred eighty-one billion, seven hundred seven million, seven hundred thousand, sixty-eight".