661606003214 has 32 divisors (see below), whose sum is σ = 1081271785440. Its totient is φ = 301792563072.

The previous prime is 661606003199. The next prime is 661606003273. The reversal of 661606003214 is 412300606166.

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, 831077 + ... + 1419119.

It is an arithmetic number, because the mean of its divisors is an integer number (33789743295).

Almost surely, 2^661606003214 is an apocalyptic number.

661606003214 is a deficient number, since it is larger than the sum of its proper divisors (419665782226).

661606003214 is a wasteful number, since it uses less digits than its factorization.

661606003214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588564.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 661606003214 in words is "six hundred sixty-one billion, six hundred six million, three thousand, two hundred fourteen".