666802466 has 16 divisors (see below), whose sum is σ = 1093750560. Its totient is φ = 302364480.

The previous prime is 666802463. The next prime is 666802469. The reversal of 666802466 is 664208666.

It is an interprime number because it is at equal distance from previous prime (666802463) and next prime (666802469).

It is not an unprimeable number, because it can be changed into a prime (666802463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26951 + ... + 45386.

It is an arithmetic number, because the mean of its divisors is an integer number (68359410).

Almost surely, 2^666802466 is an apocalyptic number.

666802466 is a deficient number, since it is larger than the sum of its proper divisors (426948094).

666802466 is a wasteful number, since it uses less digits than its factorization.

666802466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72769.

The product of its (nonzero) digits is 497664, while the sum is 44.

The square root of 666802466 is about 25822.5185835929. The cubic root of 666802466 is about 873.6397765316.

The spelling of 666802466 in words is "six hundred sixty-six million, eight hundred two thousand, four hundred sixty-six".