65878080 has 112 divisors (see below), whose sum is σ = 210945984. Its totient is φ = 17418240.

The previous prime is 65878037. The next prime is 65878091. The reversal of 65878080 is 8087856.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156270 + ... + 156690.

Almost surely, 2^65878080 is an apocalyptic number.

65878080 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 65878080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105472992).

65878080 is an abundant number, since it is smaller than the sum of its proper divisors (145067904).

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

65878080 is a wasteful number, since it uses less digits than its factorization.

65878080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 65878080 is about 8116.5312788161. The cubic root of 65878080 is about 403.8750062624.

The spelling of 65878080 in words is "sixty-five million, eight hundred seventy-eight thousand, eighty".