65662452440 has 64 divisors (see below), whose sum is σ = 159136639200. Its totient is φ = 24239803392.

The previous prime is 65662452439. The next prime is 65662452463. The reversal of 65662452440 is 4425426656.

It is a junction number, because it is equal to n+sod(n) for n = 65662452391 and 65662452400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3653396 + ... + 3671324.

Almost surely, 2^65662452440 is an apocalyptic number.

It is an amenable number.

65662452440 is an abundant number, since it is smaller than the sum of its proper divisors (93474186760).

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

65662452440 is a wasteful number, since it uses less digits than its factorization.

65662452440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24996 (or 24992 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 44.

The spelling of 65662452440 in words is "sixty-five billion, six hundred sixty-two million, four hundred fifty-two thousand, four hundred forty".