320506106501 has 12 divisors (see below), whose sum is σ = 372865800960. Its totient is φ = 274695818040.

The previous prime is 320506106497. The next prime is 320506106563. The reversal of 320506106501 is 105601605023.

It is not a de Polignac number, because 320506106501 - 2² = 320506106497 is a prime.

It is a super-3 number, since 3×320506106501³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320506105501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 303866 + ... + 856356.

It is an arithmetic number, because the mean of its divisors is an integer number (31072150080).

Almost surely, 2^320506106501 is an apocalyptic number.

It is an amenable number.

320506106501 is a deficient number, since it is larger than the sum of its proper divisors (52359694459).

320506106501 is a wasteful number, since it uses less digits than its factorization.

320506106501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564344 (or 564337 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 320506106501 in words is "three hundred twenty billion, five hundred six million, one hundred six thousand, five hundred one".