664271077474 has 8 divisors (see below), whose sum is σ = 1001973134160. Its totient is φ = 330280032756.

The previous prime is 664271077451. The next prime is 664271077487. The reversal of 664271077474 is 474770172466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 927752544 + ... + 927753259.

It is an arithmetic number, because the mean of its divisors is an integer number (125246641770).

Almost surely, 2^664271077474 is an apocalyptic number.

664271077474 is a deficient number, since it is larger than the sum of its proper divisors (337702056686).

664271077474 is a wasteful number, since it uses less digits than its factorization.

664271077474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855505984.

The product of its (nonzero) digits is 11063808, while the sum is 55.

The spelling of 664271077474 in words is "six hundred sixty-four billion, two hundred seventy-one million, seventy-seven thousand, four hundred seventy-four".