325620631215 has 48 divisors (see below), whose sum is σ = 630736587936. Its totient is φ = 154026009600.

The previous prime is 325620631211. The next prime is 325620631223. The reversal of 325620631215 is 512136026523.

325620631215 is a `hidden beast` number, since 3 + 2 + 5 + 6 + 2 + 0 + 631 + 2 + 15 = 666.

It is not a de Polignac number, because 325620631215 - 2² = 325620631211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 325620631215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325620631211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8001894 + ... + 8042483.

It is an arithmetic number, because the mean of its divisors is an integer number (13140345582).

Almost surely, 2^325620631215 is an apocalyptic number.

325620631215 is a deficient number, since it is larger than the sum of its proper divisors (305115956721).

325620631215 is a wasteful number, since it uses less digits than its factorization.

325620631215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16044440 (or 16044437 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

Adding to 325620631215 its reverse (512136026523), we get a palindrome (837756657738).

The spelling of 325620631215 in words is "three hundred twenty-five billion, six hundred twenty million, six hundred thirty-one thousand, two hundred fifteen".