65555551006 has 16 divisors (see below), whose sum is σ = 109090903680. Its totient is φ = 29292926680.

The previous prime is 65555550997. The next prime is 65555551037. The reversal of 65555551006 is 60015555556.

It is a super-2 number, since 2×65555551006² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 25251226 + ... + 25253821.

It is an arithmetic number, because the mean of its divisors is an integer number (6818181480).

Almost surely, 2^65555551006 is an apocalyptic number.

65555551006 is a deficient number, since it is larger than the sum of its proper divisors (43535352674).

65555551006 is a wasteful number, since it uses less digits than its factorization.

65555551006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50505119.

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 65555551006 in words is "sixty-five billion, five hundred fifty-five million, five hundred fifty-one thousand, six".