1555606660116 has 48 divisors (see below), whose sum is σ = 3632585048064. Its totient is φ = 518130551136.

The previous prime is 1555606660109. The next prime is 1555606660121. The reversal of 1555606660116 is 6110666065551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109488685 + ... + 109502891.

It is an arithmetic number, because the mean of its divisors is an integer number (75678855168).

Almost surely, 2^{1555606660116} is an apocalyptic number.

It is an amenable number.

1555606660116 is an abundant number, since it is smaller than the sum of its proper divisors (2076978387948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1555606660116 is a wasteful number, since it uses less digits than its factorization.

1555606660116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20700 (or 20698 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 1555606660116 in words is "one trillion, five hundred fifty-five billion, six hundred six million, six hundred sixty thousand, one hundred sixteen".