320153620465 has 16 divisors (see below), whose sum is σ = 439363164672. Its totient is φ = 219386240064.

The previous prime is 320153620459. The next prime is 320153620471. The reversal of 320153620465 is 564026351023.

It is an interprime number because it is at equal distance from previous prime (320153620459) and next prime (320153620471).

It is a cyclic number.

It is not a de Polignac number, because 320153620465 - 2⁷ = 320153620337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3023694 + ... + 3127783.

It is an arithmetic number, because the mean of its divisors is an integer number (27460197792).

Almost surely, 2^320153620465 is an apocalyptic number.

320153620465 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

320153620465 is a deficient number, since it is larger than the sum of its proper divisors (119209544207).

320153620465 is a wasteful number, since it uses less digits than its factorization.

320153620465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6152976.

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 320153620465 its reverse (564026351023), we get a palindrome (884179971488).

The spelling of 320153620465 in words is "three hundred twenty billion, one hundred fifty-three million, six hundred twenty thousand, four hundred sixty-five".