65633484480 has 448 divisors, whose sum is σ = 231306624000. Its totient is φ = 15693004800.

The previous prime is 65633484437. The next prime is 65633484493. The reversal of 65633484480 is 8448433656.

It is a happy number.

65633484480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42370746 + ... + 42372294.

Almost surely, 2^65633484480 is an apocalyptic number.

65633484480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65633484480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115653312000).

65633484480 is an abundant number, since it is smaller than the sum of its proper divisors (165673139520).

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

65633484480 is a wasteful number, since it uses less digits than its factorization.

65633484480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712 (or 1702 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 51.

The spelling of 65633484480 in words is "sixty-five billion, six hundred thirty-three million, four hundred eighty-four thousand, four hundred eighty".