325168647644 has 6 divisors (see below), whose sum is σ = 569045133384. Its totient is φ = 162584323820.

The previous prime is 325168647641. The next prime is 325168647667. The reversal of 325168647644 is 446746861523.

It is a self number, because there is not a number n which added to its sum of digits gives 325168647644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325168647641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40646080952 + ... + 40646080959.

It is an arithmetic number, because the mean of its divisors is an integer number (94840855564).

Almost surely, 2^325168647644 is an apocalyptic number.

It is an amenable number.

325168647644 is a deficient number, since it is larger than the sum of its proper divisors (243876485740).

325168647644 is a wasteful number, since it uses less digits than its factorization.

325168647644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81292161915 (or 81292161913 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 56.

The spelling of 325168647644 in words is "three hundred twenty-five billion, one hundred sixty-eight million, six hundred forty-seven thousand, six hundred forty-four".