65556432063 has 12 divisors (see below), whose sum is σ = 95188399488. Its totient is φ = 43475468640.

The previous prime is 65556432043. The next prime is 65556432079. The reversal of 65556432063 is 36023465556.

65556432063 is a `hidden beast` number, since 6 + 5 + 5 + 564 + 3 + 20 + 63 = 666.

It is not a de Polignac number, because 65556432063 - 2⁵ = 65556432031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65556432023) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 19066470 + ... + 19069907.

It is an arithmetic number, because the mean of its divisors is an integer number (7932366624).

Almost surely, 2^65556432063 is an apocalyptic number.

65556432063 is a deficient number, since it is larger than the sum of its proper divisors (29631967425).

65556432063 is a wasteful number, since it uses less digits than its factorization.

65556432063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38136574 (or 38136571 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 45.

The spelling of 65556432063 in words is "sixty-five billion, five hundred fifty-six million, four hundred thirty-two thousand, sixty-three".