80664722 has 8 divisors (see below), whose sum is σ = 121187772. Its totient is φ = 40268800.

The previous prime is 80664721. The next prime is 80664751. The reversal of 80664722 is 22746608.

It can be written as a sum of positive squares in 2 ways, for example, as 74459641 + 6205081 = 8629^2 + 2491^2 .

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

It is not an unprimeable number, because it can be changed into a prime (80664721) 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, 30179 + ... + 32742.

Almost surely, 2^80664722 is an apocalyptic number.

80664722 is a deficient number, since it is larger than the sum of its proper divisors (40523050).

80664722 is a wasteful number, since it uses less digits than its factorization.

80664722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63564.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 80664722 is about 8981.3541295286. The cubic root of 80664722 is about 432.0770645838.

The spelling of 80664722 in words is "eighty million, six hundred sixty-four thousand, seven hundred twenty-two".