664415741515351 has 8 divisors (see below), whose sum is σ = 759332924344224. Its totient is φ = 569498720768160.

The previous prime is 664415741515283. The next prime is 664415741515399. The reversal of 664415741515351 is 153515147514466.

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

It is a cyclic number.

It is not a de Polignac number, because 664415741515351 - 2⁷ = 664415741515223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664415741515451) 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, 31605520 + ... + 48246661.

It is an arithmetic number, because the mean of its divisors is an integer number (94916615543028).

Almost surely, 2^{664415741515351} is an apocalyptic number.

664415741515351 is a deficient number, since it is larger than the sum of its proper divisors (94917182828873).

664415741515351 is a wasteful number, since it uses less digits than its factorization.

664415741515351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81040841.

The product of its digits is 30240000, while the sum is 58.

The spelling of 664415741515351 in words is "six hundred sixty-four trillion, four hundred fifteen billion, seven hundred forty-one million, five hundred fifteen thousand, three hundred fifty-one".