51333223430320 has 40 divisors (see below), whose sum is σ = 128530494053136. Its totient is φ = 18953805573888.

The previous prime is 51333223430273. The next prime is 51333223430339. The reversal of 51333223430320 is 2303432233315.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24679433302 + ... + 24679435381.

Almost surely, 2^{51333223430320} is an apocalyptic number.

It is an amenable number.

51333223430320 is an abundant number, since it is smaller than the sum of its proper divisors (77197270622816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51333223430320 is a wasteful number, since it uses less digits than its factorization.

51333223430320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49358868709 (or 49358868703 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 34.

Adding to 51333223430320 its reverse (2303432233315), we get a palindrome (53636655663635).

The spelling of 51333223430320 in words is "fifty-one trillion, three hundred thirty-three billion, two hundred twenty-three million, four hundred thirty thousand, three hundred twenty".