155516606055 has 48 divisors (see below), whose sum is σ = 276975414144. Its totient is φ = 80663247360.

The previous prime is 155516606053. The next prime is 155516606057. The reversal of 155516606055 is 550606615551.

155516606055 is a `hidden beast` number, since 15 + 5 + 516 + 60 + 60 + 5 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (155516606053) and next prime (155516606057).

It is not a de Polignac number, because 155516606055 - 2¹ = 155516606053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 155516606055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155516606053) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 3787435 + ... + 3828275.

It is an arithmetic number, because the mean of its divisors is an integer number (5770321128).

Almost surely, 2^155516606055 is an apocalyptic number.

155516606055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155516606055 is a deficient number, since it is larger than the sum of its proper divisors (121458808089).

155516606055 is a wasteful number, since it uses less digits than its factorization.

155516606055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43176 (or 43173 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 45.

The spelling of 155516606055 in words is "one hundred fifty-five billion, five hundred sixteen million, six hundred six thousand, fifty-five".