76527180161 has 4 divisors (see below), whose sum is σ = 81028779012. Its totient is φ = 72025581312.

The previous prime is 76527180143. The next prime is 76527180181. The reversal of 76527180161 is 16108172567.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49996960000 + 26530220161 = 223600^2 + 162881^2 .

It is a cyclic number.

It is not a de Polignac number, because 76527180161 - 2³⁰ = 75453438337 is a prime.

It is a super-3 number, since 3×76527180161³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (76527180131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2250799400 + ... + 2250799433.

It is an arithmetic number, because the mean of its divisors is an integer number (20257194753).

Almost surely, 2^76527180161 is an apocalyptic number.

It is an amenable number.

76527180161 is a deficient number, since it is larger than the sum of its proper divisors (4501598851).

76527180161 is a wasteful number, since it uses less digits than its factorization.

76527180161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4501598850.

The product of its (nonzero) digits is 141120, while the sum is 44.

The spelling of 76527180161 in words is "seventy-six billion, five hundred twenty-seven million, one hundred eighty thousand, one hundred sixty-one".