321566125623052 has 12 divisors (see below), whose sum is σ = 562741384657536. Its totient is φ = 160782872863760.

The previous prime is 321566125623049. The next prime is 321566125623077. The reversal of 321566125623052 is 250326521665123.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 321566125622987 and 321566125623005.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43643308 + ... + 50476435.

It is an arithmetic number, because the mean of its divisors is an integer number (46895115388128).

Almost surely, 2^{321566125623052} is an apocalyptic number.

It is an amenable number.

321566125623052 is a deficient number, since it is larger than the sum of its proper divisors (241175259034484).

321566125623052 is a wasteful number, since it uses less digits than its factorization.

321566125623052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94973888 (or 94973886 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 49.

The spelling of 321566125623052 in words is "three hundred twenty-one trillion, five hundred sixty-six billion, one hundred twenty-five million, six hundred twenty-three thousand, fifty-two".