55591564366265 has 16 divisors (see below), whose sum is σ = 70634195154432. Its totient is φ = 41857054919424.

The previous prime is 55591564366253. The next prime is 55591564366319. The reversal of 55591564366265 is 56266346519555.

It is a cyclic number.

It is not a de Polignac number, because 55591564366265 - 2¹⁰ = 55591564365241 is a prime.

It is a super-2 number, since 2×55591564366265² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55591564366195 and 55591564366204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36848102 + ... + 38327088.

It is an arithmetic number, because the mean of its divisors is an integer number (4414637197152).

Almost surely, 2^{55591564366265} is an apocalyptic number.

It is an amenable number.

55591564366265 is a deficient number, since it is larger than the sum of its proper divisors (15042630788167).

55591564366265 is a wasteful number, since it uses less digits than its factorization.

55591564366265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921216.

The product of its digits is 874800000, while the sum is 68.

The spelling of 55591564366265 in words is "fifty-five trillion, five hundred ninety-one billion, five hundred sixty-four million, three hundred sixty-six thousand, two hundred sixty-five".