155139241584 has 80 divisors (see below), whose sum is σ = 414033182720. Its totient is φ = 50005175040.

The previous prime is 155139241519. The next prime is 155139241603. The reversal of 155139241584 is 485142931551.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1862394 + ... + 1943910.

It is an arithmetic number, because the mean of its divisors is an integer number (5175414784).

Almost surely, 2^155139241584 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155139241584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207016591360).

155139241584 is an abundant number, since it is smaller than the sum of its proper divisors (258893941136).

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

155139241584 is a wasteful number, since it uses less digits than its factorization.

155139241584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82838 (or 82832 counting only the distinct ones).

The product of its digits is 864000, while the sum is 48.

The spelling of 155139241584 in words is "one hundred fifty-five billion, one hundred thirty-nine million, two hundred forty-one thousand, five hundred eighty-four".