666463430 has 32 divisors (see below), whose sum is σ = 1227242880. Its totient is φ = 260507520.

The previous prime is 666463403. The next prime is 666463453. The reversal of 666463430 is 34364666.

666463430 = T₄₆₄₄ + T₄₆₄₅ + ... + T₄₇₀₄.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 92291 + ... + 99249.

It is an arithmetic number, because the mean of its divisors is an integer number (38351340).

Almost surely, 2^666463430 is an apocalyptic number.

666463430 is a deficient number, since it is larger than the sum of its proper divisors (560779450).

666463430 is a wasteful number, since it uses less digits than its factorization.

666463430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7184.

The product of its (nonzero) digits is 186624, while the sum is 38.

The square root of 666463430 is about 25815.9530135922. The cubic root of 666463430 is about 873.4916839231.

The spelling of 666463430 in words is "six hundred sixty-six million, four hundred sixty-three thousand, four hundred thirty".