55886866118581 has 16 divisors (see below), whose sum is σ = 57175590528000. Its totient is φ = 54609967048000.

The previous prime is 55886866118563. The next prime is 55886866118593. The reversal of 55886866118581 is 18581166868855.

It is a cyclic number.

It is not a de Polignac number, because 55886866118581 - 2¹³ = 55886866110389 is a prime.

It is a super-2 number, since 2×55886866118581² (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 = 55886866118498 and 55886866118507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55886866118561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12754995 + ... + 16566943.

It is an arithmetic number, because the mean of its divisors is an integer number (3573474408000).

Almost surely, 2^{55886866118581} is an apocalyptic number.

It is an amenable number.

55886866118581 is a deficient number, since it is larger than the sum of its proper divisors (1288724409419).

55886866118581 is a wasteful number, since it uses less digits than its factorization.

55886866118581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3813500.

The product of its digits is 884736000, while the sum is 76.

The spelling of 55886866118581 in words is "fifty-five trillion, eight hundred eighty-six billion, eight hundred sixty-six million, one hundred eighteen thousand, five hundred eighty-one".