65489087115648 has 256 divisors, whose sum is σ = 225403810560000. Its totient is φ = 18711167408640.

The previous prime is 65489087115643. The next prime is 65489087115653. The reversal of 65489087115648 is 84651178098456.

It is a happy number.

65489087115648 is a `hidden beast` number, since 6 + 5 + 48 + 9 + 0 + 8 + 7 + 11 + 564 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (65489087115643) and next prime (65489087115653).

It is a super-3 number, since 3×65489087115648³ (a number of 42 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65489087115643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26437608 + ... + 28808423.

It is an arithmetic number, because the mean of its divisors is an integer number (880483635000).

Almost surely, 2^{65489087115648} is an apocalyptic number.

It is an amenable number.

65489087115648 is an abundant number, since it is smaller than the sum of its proper divisors (159914723444352).

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

65489087115648 is an equidigital number, since it uses as much as digits as its factorization.

65489087115648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55246075 (or 55246043 counting only the distinct ones).

The product of its (nonzero) digits is 464486400, while the sum is 72.

The spelling of 65489087115648 in words is "sixty-five trillion, four hundred eighty-nine billion, eighty-seven million, one hundred fifteen thousand, six hundred forty-eight".