352645663640 has 32 divisors (see below), whose sum is σ = 803496456000. Its totient is φ = 139272716544.

The previous prime is 352645663637. The next prime is 352645663687. The reversal of 352645663640 is 46366546253.

It is a congruent number.

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, 55795205 + ... + 55801524.

It is an arithmetic number, because the mean of its divisors is an integer number (25109264250).

Almost surely, 2^352645663640 is an apocalyptic number.

It is an amenable number.

352645663640 is an abundant number, since it is smaller than the sum of its proper divisors (450850792360).

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

352645663640 is a wasteful number, since it uses less digits than its factorization.

352645663640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111596819 (or 111596815 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 50.

The spelling of 352645663640 in words is "three hundred fifty-two billion, six hundred forty-five million, six hundred sixty-three thousand, six hundred forty".