80888161066 has 4 divisors (see below), whose sum is σ = 121332241602. Its totient is φ = 40444080532.

The previous prime is 80888161061. The next prime is 80888161097. The reversal of 80888161066 is 66016188808.

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

It can be written as a sum of positive squares in only one way, i.e., 78699886225 + 2188274841 = 280535^2 + 46779^2 .

It is not an unprimeable number, because it can be changed into a prime (80888161061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20222040265 + ... + 20222040268.

Almost surely, 2^80888161066 is an apocalyptic number.

80888161066 is a deficient number, since it is larger than the sum of its proper divisors (40444080536).

80888161066 is a wasteful number, since it uses less digits than its factorization.

80888161066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40444080535.

The product of its (nonzero) digits is 884736, while the sum is 52.

The spelling of 80888161066 in words is "eighty billion, eight hundred eighty-eight million, one hundred sixty-one thousand, sixty-six".