65030005440 has 224 divisors, whose sum is σ = 231685917120. Its totient is φ = 17169408000.

The previous prime is 65030005433. The next prime is 65030005457. The reversal of 65030005440 is 4450003056.

65030005440 is a `hidden beast` number, since 650 + 3 + 0 + 0 + 0 + 5 + 4 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 835380 + ... + 909900.

It is an arithmetic number, because the mean of its divisors is an integer number (1034312130).

Almost surely, 2^65030005440 is an apocalyptic number.

65030005440 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 65030005440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115842958560).

65030005440 is an abundant number, since it is smaller than the sum of its proper divisors (166655911680).

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

65030005440 is a wasteful number, since it uses less digits than its factorization.

65030005440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74648 (or 74632 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 65030005440 its reverse (4450003056), we get a palindrome (69480008496).

The spelling of 65030005440 in words is "sixty-five billion, thirty million, five thousand, four hundred forty".