65556500055 has 8 divisors (see below), whose sum is σ = 104890400112. Its totient is φ = 34963466688.

The previous prime is 65556500047. The next prime is 65556500143. The reversal of 65556500055 is 55000565556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65556500055 - 2³ = 65556500047 is a prime.

It is a super-2 number, since 2×65556500055² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2185216654 + ... + 2185216683.

It is an arithmetic number, because the mean of its divisors is an integer number (13111300014).

Almost surely, 2^65556500055 is an apocalyptic number.

65556500055 is a deficient number, since it is larger than the sum of its proper divisors (39333900057).

65556500055 is a wasteful number, since it uses less digits than its factorization.

65556500055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4370433345.

The product of its (nonzero) digits is 562500, while the sum is 42.

The spelling of 65556500055 in words is "sixty-five billion, five hundred fifty-six million, five hundred thousand, fifty-five".