65956944 has 40 divisors (see below), whose sum is σ = 172940320. Its totient is φ = 21656448.

The previous prime is 65956931. The next prime is 65956949. The reversal of 65956944 is 44965956.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 65956893 and 65956902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65956949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7039 + ... + 13470.

It is an arithmetic number, because the mean of its divisors is an integer number (4323508).

Almost surely, 2^65956944 is an apocalyptic number.

It is an amenable number.

65956944 is an abundant number, since it is smaller than the sum of its proper divisors (106983376).

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

65956944 is a wasteful number, since it uses less digits than its factorization.

65956944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20587 (or 20581 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 48.

The square root of 65956944 is about 8121.3880587003. The cubic root of 65956944 is about 404.0361043445.

The spelling of 65956944 in words is "sixty-five million, nine hundred fifty-six thousand, nine hundred forty-four".