666462010 has 8 divisors (see below), whose sum is σ = 1199631636. Its totient is φ = 266584800.

The previous prime is 666462001. The next prime is 666462077. The reversal of 666462010 is 10264666.

It can be written as a sum of positive squares in 2 ways, for example, as 660849849 + 5612161 = 25707^2 + 2369^2 .

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

It is a super-2 number, since 2×666462010² = 888343221546480200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33323091 + ... + 33323110.

Almost surely, 2^666462010 is an apocalyptic number.

666462010 is a deficient number, since it is larger than the sum of its proper divisors (533169626).

666462010 is a wasteful number, since it uses less digits than its factorization.

666462010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66646208.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 666462010 is about 25815.9255112034. The cubic root of 666462010 is about 873.4910635544.

The spelling of 666462010 in words is "six hundred sixty-six million, four hundred sixty-two thousand, ten".