666670829582 has 16 divisors (see below), whose sum is σ = 1004147020800. Its totient is φ = 331955571000.

The previous prime is 666670829557. The next prime is 666670829599. The reversal of 666670829582 is 285928076666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3222419 + ... + 3423057.

It is an arithmetic number, because the mean of its divisors is an integer number (62759188800).

Almost surely, 2^666670829582 is an apocalyptic number.

666670829582 is a deficient number, since it is larger than the sum of its proper divisors (337476191218).

666670829582 is a wasteful number, since it uses less digits than its factorization.

666670829582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207511.

The product of its (nonzero) digits is 104509440, while the sum is 65.

The spelling of 666670829582 in words is "six hundred sixty-six billion, six hundred seventy million, eight hundred twenty-nine thousand, five hundred eighty-two".