65555556455 has 32 divisors (see below), whose sum is σ = 86958144000. Its totient is φ = 47221080192.

The previous prime is 65555556427. The next prime is 65555556457. The reversal of 65555556455 is 55465555556.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65555556455 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65555556455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65555556457) 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 31 ways as a sum of consecutive naturals, for example, 247496 + ... + 438594.

It is an arithmetic number, because the mean of its divisors is an integer number (2717442000).

Almost surely, 2^65555556455 is an apocalyptic number.

65555556455 is a deficient number, since it is larger than the sum of its proper divisors (21402587545).

65555556455 is a wasteful number, since it uses less digits than its factorization.

65555556455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191303.

The product of its digits is 56250000, while the sum is 56.

The spelling of 65555556455 in words is "sixty-five billion, five hundred fifty-five million, five hundred fifty-six thousand, four hundred fifty-five".