65996424 has 128 divisors (see below), whose sum is σ = 207984000. Its totient is φ = 19222272.

The previous prime is 65996393. The next prime is 65996459. The reversal of 65996424 is 42469956.

65996424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 65996424.

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 31 ways as a sum of consecutive naturals, for example, 52734 + ... + 53970.

It is an arithmetic number, because the mean of its divisors is an integer number (1624875).

Almost surely, 2^65996424 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 65996424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103992000).

65996424 is an abundant number, since it is smaller than the sum of its proper divisors (141987576).

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

65996424 is a wasteful number, since it uses less digits than its factorization.

65996424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284 (or 1274 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 65996424 is about 8123.8183140688. The cubic root of 65996424 is about 404.1167032060.

The spelling of 65996424 in words is "sixty-five million, nine hundred ninety-six thousand, four hundred twenty-four".