65553272536 has 32 divisors (see below), whose sum is σ = 124321618800. Its totient is φ = 32401008640.

The previous prime is 65553272531. The next prime is 65553272537. The reversal of 65553272536 is 63527235556.

It is a self number, because there is not a number n which added to its sum of digits gives 65553272536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65553272531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4494696 + ... + 4509256.

Almost surely, 2^65553272536 is an apocalyptic number.

It is an amenable number.

65553272536 is a deficient number, since it is larger than the sum of its proper divisors (58768346264).

65553272536 is a wasteful number, since it uses less digits than its factorization.

65553272536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20979 (or 20975 counting only the distinct ones).

The product of its digits is 5670000, while the sum is 49.

The spelling of 65553272536 in words is "sixty-five billion, five hundred fifty-three million, two hundred seventy-two thousand, five hundred thirty-six".