664585614532 has 24 divisors (see below), whose sum is σ = 1329252214976. Its totient is φ = 284805052128.

The previous prime is 664585614529. The next prime is 664585614547. The reversal of 664585614532 is 235416585466.

It is a happy number.

664585614532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249903 + ... + 1179670.

Almost surely, 2^664585614532 is an apocalyptic number.

It is an amenable number.

664585614532 is an abundant number, since it is smaller than the sum of its proper divisors (664666600444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

664585614532 is a wasteful number, since it uses less digits than its factorization.

664585614532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446187 (or 1446185 counting only the distinct ones).

The product of its digits is 20736000, while the sum is 55.

The spelling of 664585614532 in words is "six hundred sixty-four billion, five hundred eighty-five million, six hundred fourteen thousand, five hundred thirty-two".