1555114551141 has 16 divisors (see below), whose sum is σ = 2078518890240. Its totient is φ = 1034227138560.

The previous prime is 1555114551139. The next prime is 1555114551157. The reversal of 1555114551141 is 1411554115551.

It is not a de Polignac number, because 1555114551141 - 2¹ = 1555114551139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1555114551141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1555114551131) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13089381 + ... + 13207653.

It is an arithmetic number, because the mean of its divisors is an integer number (129907430640).

Almost surely, 2^{1555114551141} is an apocalyptic number.

It is an amenable number.

1555114551141 is a deficient number, since it is larger than the sum of its proper divisors (523404339099).

1555114551141 is a wasteful number, since it uses less digits than its factorization.

1555114551141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128876.

The product of its digits is 50000, while the sum is 39.

Adding to 1555114551141 its reverse (1411554115551), we get a palindrome (2966668666692).

The spelling of 1555114551141 in words is "one trillion, five hundred fifty-five billion, one hundred fourteen million, five hundred fifty-one thousand, one hundred forty-one".