65003964480 has 1680 divisors, whose sum is σ = 301372194816. Its totient is φ = 13168189440.

The previous prime is 65003964401. The next prime is 65003964527. The reversal of 65003964480 is 8446930056.

65003964480 is a `hidden beast` number, since 6 + 500 + 3 + 9 + 64 + 4 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (1680).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 511842177 + ... + 511842303.

Almost surely, 2^65003964480 is an apocalyptic number.

65003964480 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 65003964480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150686097408).

65003964480 is an abundant number, since it is smaller than the sum of its proper divisors (236368230336).

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

65003964480 is a wasteful number, since it uses less digits than its factorization.

65003964480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 65003964480 in words is "sixty-five billion, three million, nine hundred sixty-four thousand, four hundred eighty".