65676380 has 72 divisors (see below), whose sum is σ = 173300064. Its totient is φ = 20465280.

The previous prime is 65676379. The next prime is 65676419. The reversal of 65676380 is 8367656.

65676380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15002 + ... + 18878.

Almost surely, 2^65676380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65676380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86650032).

65676380 is an abundant number, since it is smaller than the sum of its proper divisors (107623684).

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

65676380 is a wasteful number, since it uses less digits than its factorization.

65676380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3915 (or 3902 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 65676380 is about 8104.0964949833. The cubic root of 65676380 is about 403.4624013013.

The spelling of 65676380 in words is "sixty-five million, six hundred seventy-six thousand, three hundred eighty".