65472256444 has 12 divisors (see below), whose sum is σ = 130944512944. Its totient is φ = 28059538464.

The previous prime is 65472256439. The next prime is 65472256457. The reversal of 65472256444 is 44465227456.

65472256444 is an admirable number.

It is a super-3 number, since 3×65472256444³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1169147409 + ... + 1169147464.

Almost surely, 2^65472256444 is an apocalyptic number.

It is an amenable number.

65472256444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

65472256444 is a wasteful number, since it uses less digits than its factorization.

65472256444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338294884 (or 2338294882 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 49.

The spelling of 65472256444 in words is "sixty-five billion, four hundred seventy-two million, two hundred fifty-six thousand, four hundred forty-four".