155405052306 has 32 divisors (see below), whose sum is σ = 394679498880. Its totient is φ = 44401443408.

The previous prime is 155405052221. The next prime is 155405052307. The reversal of 155405052306 is 603250504551.

155405052306 is a `hidden beast` number, since 1 + 554 + 0 + 50 + 52 + 3 + 0 + 6 = 666.

155405052306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (155405052307) 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, 205561861 + ... + 205562616.

It is an arithmetic number, because the mean of its divisors is an integer number (12333734340).

Almost surely, 2^155405052306 is an apocalyptic number.

155405052306 is an abundant number, since it is smaller than the sum of its proper divisors (239274446574).

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

155405052306 is a wasteful number, since it uses less digits than its factorization.

155405052306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411124495 (or 411124489 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 155405052306 its reverse (603250504551), we get a palindrome (758655556857).

The spelling of 155405052306 in words is "one hundred fifty-five billion, four hundred five million, fifty-two thousand, three hundred six".