664802228751 has 8 divisors (see below), whose sum is σ = 886869261744. Its totient is φ = 442968340800.

The previous prime is 664802228747. The next prime is 664802228759. The reversal of 664802228751 is 157822208466.

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

It is not a de Polignac number, because 664802228751 - 2² = 664802228747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 664802228694 and 664802228703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664802228759) 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, 58279606 + ... + 58291011.

It is an arithmetic number, because the mean of its divisors is an integer number (110858657718).

Almost surely, 2^664802228751 is an apocalyptic number.

664802228751 is a deficient number, since it is larger than the sum of its proper divisors (222067032993).

664802228751 is a wasteful number, since it uses less digits than its factorization.

664802228751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116572521.

The product of its (nonzero) digits is 2580480, while the sum is 51.

The spelling of 664802228751 in words is "six hundred sixty-four billion, eight hundred two million, two hundred twenty-eight thousand, seven hundred fifty-one".