662171080 has 32 divisors (see below), whose sum is σ = 1577526840. Its totient is φ = 249287680.

The previous prime is 662171077. The next prime is 662171087. The reversal of 662171080 is 80171266.

It can be written as a sum of positive squares in 4 ways, for example, as 472888516 + 189282564 = 21746^2 + 13758^2 .

It is not an unprimeable number, because it can be changed into a prime (662171087) 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 in 7 ways as a sum of consecutive naturals, for example, 486211 + ... + 487570.

Almost surely, 2^662171080 is an apocalyptic number.

It is an amenable number.

662171080 is an abundant number, since it is smaller than the sum of its proper divisors (915355760).

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

662171080 is a wasteful number, since it uses less digits than its factorization.

662171080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973809 (or 973805 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 662171080 is about 25732.6850522832. The cubic root of 662171080 is about 871.6124059505.

The spelling of 662171080 in words is "six hundred sixty-two million, one hundred seventy-one thousand, eighty".