65246489064 has 128 divisors (see below), whose sum is σ = 184765104000. Its totient is φ = 21327667200.

The previous prime is 65246489029. The next prime is 65246489071. The reversal of 65246489064 is 46098464256.

65246489064 is a `hidden beast` number, since 65 + 2 + 46 + 489 + 0 + 64 = 666.

It is a super-3 number, since 3×65246489064³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 65246489064.

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, 5359144 + ... + 5371304.

It is an arithmetic number, because the mean of its divisors is an integer number (1443477375).

Almost surely, 2^65246489064 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 65246489064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92382552000).

65246489064 is an abundant number, since it is smaller than the sum of its proper divisors (119518614936).

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

65246489064 is a wasteful number, since it uses less digits than its factorization.

65246489064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12656 (or 12646 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 54.

The spelling of 65246489064 in words is "sixty-five billion, two hundred forty-six million, four hundred eighty-nine thousand, sixty-four".