65403430456 has 64 divisors (see below), whose sum is σ = 151133230080. Its totient is φ = 25839216000.

The previous prime is 65403430429. The next prime is 65403430459.

It is a happy number.

65403430456 is nontrivially palindromic in base 10.

65403430456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65403430459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486915 + ... + 606541.

It is an arithmetic number, because the mean of its divisors is an integer number (2361456720).

Almost surely, 2^65403430456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65403430456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75566615040).

65403430456 is an abundant number, since it is smaller than the sum of its proper divisors (85729799624).

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

65403430456 is a wasteful number, since it uses less digits than its factorization.

65403430456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120404 (or 120400 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 40.

The spelling of 65403430456 in words is "sixty-five billion, four hundred three million, four hundred thirty thousand, four hundred fifty-six".