65545944 has 64 divisors (see below), whose sum is σ = 169559040. Its totient is φ = 21098880.

The previous prime is 65545939. The next prime is 65545967. The reversal of 65545944 is 44954556.

65545944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×65545944² = 8592541549702272, which contains 22 as substring.

Its product of digits (432000) is a multiple of the sum of its prime factors (600).

It is a junction number, because it is equal to n+sod(n) for n = 65545896 and 65545905.

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 15 ways as a sum of consecutive naturals, for example, 197859 + ... + 198189.

It is an arithmetic number, because the mean of its divisors is an integer number (2649360).

Almost surely, 2^65545944 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 65545944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84779520).

65545944 is an abundant number, since it is smaller than the sum of its proper divisors (104013096).

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

65545944 is a wasteful number, since it uses less digits than its factorization.

65545944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600 (or 596 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The square root of 65545944 is about 8096.0449603495. The cubic root of 65545944 is about 403.1951266260.

The spelling of 65545944 in words is "sixty-five million, five hundred forty-five thousand, nine hundred forty-four".