320435200451 has 12 divisors (see below), whose sum is σ = 344026246032. Its totient is φ = 298219345776.

The previous prime is 320435200433. The next prime is 320435200457. The reversal of 320435200451 is 154002534023.

It is a happy number.

It is not a de Polignac number, because 320435200451 - 2²⁶ = 320368091587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320435200457) 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, 8166071 + ... + 8205216.

It is an arithmetic number, because the mean of its divisors is an integer number (28668853836).

Almost surely, 2^320435200451 is an apocalyptic number.

320435200451 is a deficient number, since it is larger than the sum of its proper divisors (23591045581).

320435200451 is a wasteful number, since it uses less digits than its factorization.

320435200451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16371370 (or 16371347 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 320435200451 its reverse (154002534023), we get a palindrome (474437734474).

The spelling of 320435200451 in words is "three hundred twenty billion, four hundred thirty-five million, two hundred thousand, four hundred fifty-one".