664560713703 has 4 divisors (see below), whose sum is σ = 886080951608. Its totient is φ = 443040475800.

The previous prime is 664560713689. The next prime is 664560713743. The reversal of 664560713703 is 307317065466.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 664560713703 - 2⁶ = 664560713639 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 (664560713743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110760118948 + ... + 110760118953.

It is an arithmetic number, because the mean of its divisors is an integer number (221520237902).

Almost surely, 2^664560713703 is an apocalyptic number.

664560713703 is a deficient number, since it is larger than the sum of its proper divisors (221520237905).

664560713703 is a wasteful number, since it uses less digits than its factorization.

664560713703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221520237904.

The product of its (nonzero) digits is 1905120, while the sum is 48.

The spelling of 664560713703 in words is "six hundred sixty-four billion, five hundred sixty million, seven hundred thirteen thousand, seven hundred three".