55798161111 has 96 divisors (see below), whose sum is σ = 103859159040. Its totient is φ = 28015156800.

The previous prime is 55798161047. The next prime is 55798161127. The reversal of 55798161111 is 11116189755.

55798161111 is a `hidden beast` number, since 5 + 579 + 8 + 1 + 61 + 1 + 11 = 666.

It is not a de Polignac number, because 55798161111 - 2⁶ = 55798161047 is a prime.

It is a super-2 number, since 2×55798161111² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55798161191) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 27046066 + ... + 27048128.

It is an arithmetic number, because the mean of its divisors is an integer number (1081866240).

Almost surely, 2^55798161111 is an apocalyptic number.

55798161111 is a deficient number, since it is larger than the sum of its proper divisors (48060997929).

55798161111 is a wasteful number, since it uses less digits than its factorization.

55798161111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377 (or 3374 counting only the distinct ones).

The product of its digits is 75600, while the sum is 45.

The spelling of 55798161111 in words is "fifty-five billion, seven hundred ninety-eight million, one hundred sixty-one thousand, one hundred eleven".