155542156252 has 12 divisors (see below), whose sum is σ = 311084312560. Its totient is φ = 66660924096.

The previous prime is 155542156243. The next prime is 155542156271. The reversal of 155542156252 is 252651245551.

155542156252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

155542156252 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 155542156199 and 155542156208.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2777538477 + ... + 2777538532.

Almost surely, 2^155542156252 is an apocalyptic number.

It is an amenable number.

155542156252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

155542156252 is a wasteful number, since it uses less digits than its factorization.

155542156252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555077020 (or 5555077018 counting only the distinct ones).

The product of its digits is 600000, while the sum is 43.

The spelling of 155542156252 in words is "one hundred fifty-five billion, five hundred forty-two million, one hundred fifty-six thousand, two hundred fifty-two".