664436147056031 has 16 divisors (see below), whose sum is σ = 759405953017344. Its totient is φ = 569478931845984.

The previous prime is 664436147056009. The next prime is 664436147056067. The reversal of 664436147056031 is 130650741634466.

664436147056031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 664436147056031 - 2¹⁴ = 664436147039647 is a prime.

It is a super-3 number, since 3×664436147056031³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664436147056831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12460565336 + ... + 12460618658.

It is an arithmetic number, because the mean of its divisors is an integer number (47462872063584).

Almost surely, 2^{664436147056031} is an apocalyptic number.

664436147056031 is a deficient number, since it is larger than the sum of its proper divisors (94969805961313).

664436147056031 is a wasteful number, since it uses less digits than its factorization.

664436147056031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137990.

The product of its (nonzero) digits is 26127360, while the sum is 56.

The spelling of 664436147056031 in words is "six hundred sixty-four trillion, four hundred thirty-six billion, one hundred forty-seven million, fifty-six thousand, thirty-one".