155535211553 has 8 divisors (see below), whose sum is σ = 160945060800. Its totient is φ = 150128466768.

The previous prime is 155535211529. The next prime is 155535211561. The reversal of 155535211553 is 355112535551.

155535211553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155535211553 - 2³² = 151240244257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155535211553.

It is not an unprimeable number, because it can be changed into a prime (155535211453) 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 7 ways as a sum of consecutive naturals, for example, 673943 + ... + 874796.

It is an arithmetic number, because the mean of its divisors is an integer number (20118132600).

Almost surely, 2^155535211553 is an apocalyptic number.

It is an amenable number.

155535211553 is a deficient number, since it is larger than the sum of its proper divisors (5409849247).

155535211553 is a wasteful number, since it uses less digits than its factorization.

155535211553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552231.

The product of its digits is 281250, while the sum is 41.

The spelling of 155535211553 in words is "one hundred fifty-five billion, five hundred thirty-five million, two hundred eleven thousand, five hundred fifty-three".