155535541555 has 16 divisors (see below), whose sum is σ = 188869010400. Its totient is φ = 122952849408.

The previous prime is 155535541543. The next prime is 155535541559. The reversal of 155535541555 is 555145535551.

It is a cyclic number.

It is not a de Polignac number, because 155535541555 - 2¹¹ = 155535539507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155535541499 and 155535541508.

It is not an unprimeable number, because it can be changed into a prime (155535541559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397077 + ... + 684646.

It is an arithmetic number, because the mean of its divisors is an integer number (11804313150).

Almost surely, 2^155535541555 is an apocalyptic number.

155535541555 is a deficient number, since it is larger than the sum of its proper divisors (33333468845).

155535541555 is a wasteful number, since it uses less digits than its factorization.

155535541555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082070.

The product of its digits is 4687500, while the sum is 49.

The spelling of 155535541555 in words is "one hundred fifty-five billion, five hundred thirty-five million, five hundred forty-one thousand, five hundred fifty-five".