666514038 has 16 divisors (see below), whose sum is σ = 1340395056. Its totient is φ = 220943520.

The previous prime is 666514027. The next prime is 666514039. The reversal of 666514038 is 830415666.

It is a junction number, because it is equal to n+sod(n) for n = 666513987 and 666514005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666514039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305781 + ... + 307952.

It is an arithmetic number, because the mean of its divisors is an integer number (83774691).

Almost surely, 2^666514038 is an apocalyptic number.

666514038 is an abundant number, since it is smaller than the sum of its proper divisors (673881018).

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

666514038 is a wasteful number, since it uses less digits than its factorization.

666514038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613919.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 666514038 is about 25816.9331641076. The cubic root of 666514038 is about 873.5137929372.

The spelling of 666514038 in words is "six hundred sixty-six million, five hundred fourteen thousand, thirty-eight".