181081116753 has 8 divisors (see below), whose sum is σ = 241443506400. Its totient is φ = 120719735808.

The previous prime is 181081116737. The next prime is 181081116763. The reversal of 181081116753 is 357611180181.

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

It is not a de Polignac number, because 181081116753 - 2⁴ = 181081116737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (181081116763) 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, 431478 + ... + 740496.

It is an arithmetic number, because the mean of its divisors is an integer number (30180438300).

Almost surely, 2^181081116753 is an apocalyptic number.

It is an amenable number.

181081116753 is a deficient number, since it is larger than the sum of its proper divisors (60362389647).

181081116753 is a wasteful number, since it uses less digits than its factorization.

181081116753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504351.

The product of its (nonzero) digits is 40320, while the sum is 42.

The spelling of 181081116753 in words is "one hundred eighty-one billion, eighty-one million, one hundred sixteen thousand, seven hundred fifty-three".