665666062 has 8 divisors (see below), whose sum is σ = 1001377656. Its totient is φ = 331873512.

The previous prime is 665666041. The next prime is 665666077. The reversal of 665666062 is 260666566.

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

It is a super-2 number, since 2×665666062² = 886222612197175688, which contains 22 as substring.

It is a congruent number.

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, 478893 + ... + 480280.

It is an arithmetic number, because the mean of its divisors is an integer number (125172207).

Almost surely, 2^665666062 is an apocalyptic number.

665666062 is a deficient number, since it is larger than the sum of its proper divisors (335711594).

665666062 is a wasteful number, since it uses less digits than its factorization.

665666062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959522.

The product of its (nonzero) digits is 466560, while the sum is 43.

The square root of 665666062 is about 25800.5050725756. The cubic root of 665666062 is about 873.1431915496.

The spelling of 665666062 in words is "six hundred sixty-five million, six hundred sixty-six thousand, sixty-two".