65676544 has 36 divisors (see below), whose sum is σ = 132042400. Its totient is φ = 32601600.

The previous prime is 65676539. The next prime is 65676553. The reversal of 65676544 is 44567656.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 65676544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37807 + ... + 39505.

Almost surely, 2^65676544 is an apocalyptic number.

65676544 is a gapful number since it is divisible by the number (64) 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 65676544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66021200).

65676544 is an abundant number, since it is smaller than the sum of its proper divisors (66365856).

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

65676544 is a wasteful number, since it uses less digits than its factorization.

65676544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866 (or 1852 counting only the distinct ones).

The product of its digits is 604800, while the sum is 43.

The square root of 65676544 is about 8104.1066133165. The cubic root of 65676544 is about 403.4627371287.

The spelling of 65676544 in words is "sixty-five million, six hundred seventy-six thousand, five hundred forty-four".