664540114443613 has 8 divisors (see below), whose sum is σ = 672007371969600. Its totient is φ = 657072868354848.

The previous prime is 664540114443563. The next prime is 664540114443643. The reversal of 664540114443613 is 316344411045466.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-664540114443613 is a prime.

It is a super-2 number, since 2×664540114443613² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664540114443643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177703320 + ... + 181404382.

It is an arithmetic number, because the mean of its divisors is an integer number (84000921496200).

Almost surely, 2^{664540114443613} is an apocalyptic number.

It is an amenable number.

664540114443613 is a deficient number, since it is larger than the sum of its proper divisors (7467257525987).

664540114443613 is a wasteful number, since it uses less digits than its factorization.

664540114443613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5718611.

The product of its (nonzero) digits is 9953280, while the sum is 52.

The spelling of 664540114443613 in words is "six hundred sixty-four trillion, five hundred forty billion, one hundred fourteen million, four hundred forty-three thousand, six hundred thirteen".