1555411123133 has 48 divisors (see below), whose sum is σ = 1970662659840. Its totient is φ = 1198343106048.

The previous prime is 1555411123127. The next prime is 1555411123139. The reversal of 1555411123133 is 3313211145551.

It is an interprime number because it is at equal distance from previous prime (1555411123127) and next prime (1555411123139).

It is not a de Polignac number, because 1555411123133 - 2¹⁸ = 1555410860989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1555411123093 and 1555411123102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1555411123139) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40710203 + ... + 40748391.

It is an arithmetic number, because the mean of its divisors is an integer number (41055472080).

Almost surely, 2^{1555411123133} is an apocalyptic number.

It is an amenable number.

1555411123133 is a deficient number, since it is larger than the sum of its proper divisors (415251536707).

1555411123133 is a wasteful number, since it uses less digits than its factorization.

1555411123133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38906 (or 38883 counting only the distinct ones).

The product of its digits is 27000, while the sum is 35.

Adding to 1555411123133 its reverse (3313211145551), we get a palindrome (4868622268684).

The spelling of 1555411123133 in words is "one trillion, five hundred fifty-five billion, four hundred eleven million, one hundred twenty-three thousand, one hundred thirty-three".