65091123648 has 84 divisors (see below), whose sum is σ = 188283804280. Its totient is φ = 21497965056.

The previous prime is 65091123641. The next prime is 65091123649. The reversal of 65091123648 is 84632119056.

It is a super-3 number, since 3×65091123648³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65091123641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 455590 + ... + 581157.

Almost surely, 2^65091123648 is an apocalyptic number.

It is an amenable number.

65091123648 is an abundant number, since it is smaller than the sum of its proper divisors (123192680632).

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

65091123648 is a wasteful number, since it uses less digits than its factorization.

65091123648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036874 (or 1036861 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 65091123648 in words is "sixty-five billion, ninety-one million, one hundred twenty-three thousand, six hundred forty-eight".