76690161522 has 54 divisors (see below), whose sum is σ = 179962759431. Its totient is φ = 23592273120.

The previous prime is 76690161497. The next prime is 76690161533. The reversal of 76690161522 is 22516109667.

76690161522 is a `hidden beast` number, since 7 + 6 + 6 + 9 + 0 + 1 + 615 + 22 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 44685309321 + 32004852201 = 211389^2 + 178899^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=195819.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 15271372 + ... + 15276392.

Almost surely, 2^76690161522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76690161522

76690161522 is an abundant number, since it is smaller than the sum of its proper divisors (103272597909).

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

76690161522 is an equidigital number, since it uses as much as digits as its factorization.

76690161522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10076 (or 5039 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 76690161522 in words is "seventy-six billion, six hundred ninety million, one hundred sixty-one thousand, five hundred twenty-two".