65000880 has 200 divisors, whose sum is σ = 258188832. Its totient is φ = 14846976.

The previous prime is 65000863. The next prime is 65000917. The reversal of 65000880 is 8800056.

65000880 is a `hidden beast` number, since 650 + 0 + 0 + 8 + 8 + 0 = 666.

It is a super-2 number, since 2×65000880² = 8450228801548800, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 44644 + ... + 46076.

Almost surely, 2^65000880 is an apocalyptic number.

65000880 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 65000880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129094416).

65000880 is an abundant number, since it is smaller than the sum of its proper divisors (193187952).

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

65000880 is a wasteful number, since it uses less digits than its factorization.

65000880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465 (or 1450 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 65000880 is about 8062.3123233971. The cubic root of 65000880 is about 402.0743903321.

The spelling of 65000880 in words is "sixty-five million, eight hundred eighty", and thus it is an aban number.