320185648653 has 12 divisors (see below), whose sum is σ = 462279872160. Its totient is φ = 197037321936.

The previous prime is 320185648631. The next prime is 320185648663. The reversal of 320185648653 is 356846581023.

It is not a de Polignac number, because 320185648653 - 2⁵ = 320185648621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320185648596 and 320185648605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320185648663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 315764433 + ... + 315765446.

It is an arithmetic number, because the mean of its divisors is an integer number (38523322680).

Almost surely, 2^320185648653 is an apocalyptic number.

It is an amenable number.

320185648653 is a deficient number, since it is larger than the sum of its proper divisors (142094223507).

320185648653 is a wasteful number, since it uses less digits than its factorization.

320185648653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631529908 (or 631529895 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 51.

The spelling of 320185648653 in words is "three hundred twenty billion, one hundred eighty-five million, six hundred forty-eight thousand, six hundred fifty-three".