65380260480 has 128 divisors (see below), whose sum is σ = 208529942400. Its totient is φ = 17423831040.

The previous prime is 65380260457. The next prime is 65380260497. The reversal of 65380260480 is 8406208356.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3332941 + ... + 3352499.

It is an arithmetic number, because the mean of its divisors is an integer number (1629140175).

Almost surely, 2^65380260480 is an apocalyptic number.

65380260480 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 65380260480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104264971200).

65380260480 is an abundant number, since it is smaller than the sum of its proper divisors (143149681920).

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

65380260480 is a wasteful number, since it uses less digits than its factorization.

65380260480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21322 (or 21310 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 65380260480 in words is "sixty-five billion, three hundred eighty million, two hundred sixty thousand, four hundred eighty".