664464563701 has 8 divisors (see below), whose sum is σ = 669033699840. Its totient is φ = 659910335952.

The previous prime is 664464563687. The next prime is 664464563713. The reversal of 664464563701 is 107365464466.

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 664464563701 - 2¹⁹ = 664464039413 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 (664464563401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3637645 + ... + 3815938.

It is an arithmetic number, because the mean of its divisors is an integer number (83629212480).

Almost surely, 2^664464563701 is an apocalyptic number.

It is an amenable number.

664464563701 is a deficient number, since it is larger than the sum of its proper divisors (4569136139).

664464563701 is a wasteful number, since it uses less digits than its factorization.

664464563701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7454195.

The product of its (nonzero) digits is 8709120, while the sum is 52.

The spelling of 664464563701 in words is "six hundred sixty-four billion, four hundred sixty-four million, five hundred sixty-three thousand, seven hundred one".