80660570 has 8 divisors (see below), whose sum is σ = 145189044. Its totient is φ = 32264224.

The previous prime is 80660551. The next prime is 80660579. The reversal of 80660570 is 7506608.

It can be written as a sum of positive squares in 2 ways, for example, as 80658361 + 2209 = 8981^2 + 47^2 .

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

It is a super-2 number, since 2×80660570² = 13012255105449800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80660579) 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, 4033019 + ... + 4033038.

Almost surely, 2^80660570 is an apocalyptic number.

80660570 is a deficient number, since it is larger than the sum of its proper divisors (64528474).

80660570 is a wasteful number, since it uses less digits than its factorization.

80660570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8066064.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 80660570 is about 8981.1229810086. The cubic root of 80660570 is about 432.0696511210.

The spelling of 80660570 in words is "eighty million, six hundred sixty thousand, five hundred seventy".