65881068 has 24 divisors (see below), whose sum is σ = 167697600. Its totient is φ = 19963920.

The previous prime is 65881051. The next prime is 65881097. The reversal of 65881068 is 86018856.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249418 + ... + 249681.

It is an arithmetic number, because the mean of its divisors is an integer number (6987400).

Almost surely, 2^65881068 is an apocalyptic number.

It is an amenable number.

65881068 is an abundant number, since it is smaller than the sum of its proper divisors (101816532).

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

65881068 is a wasteful number, since it uses less digits than its factorization.

65881068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499117 (or 499115 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 65881068 is about 8116.7153455077. The cubic root of 65881068 is about 403.8811122907.

The spelling of 65881068 in words is "sixty-five million, eight hundred eighty-one thousand, sixty-eight".