664259074371 has 6 divisors (see below), whose sum is σ = 959485329660. Its totient is φ = 442839382908.

The previous prime is 664259074313. The next prime is 664259074379. The reversal of 664259074371 is 173470952466.

664259074371 is a `hidden beast` number, since 6 + 6 + 4 + 2 + 590 + 7 + 43 + 7 + 1 = 666.

It is not a de Polignac number, because 664259074371 - 2⁹ = 664259073859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (664259074379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36903281901 + ... + 36903281918.

It is an arithmetic number, because the mean of its divisors is an integer number (159914221610).

Almost surely, 2^664259074371 is an apocalyptic number.

664259074371 is a deficient number, since it is larger than the sum of its proper divisors (295226255289).

664259074371 is a wasteful number, since it uses less digits than its factorization.

664259074371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73806563825 (or 73806563822 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The spelling of 664259074371 in words is "six hundred sixty-four billion, two hundred fifty-nine million, seventy-four thousand, three hundred seventy-one".