155020130304 has 192 divisors, whose sum is σ = 448311427200. Its totient is φ = 47351955456.

The previous prime is 155020130273. The next prime is 155020130333. The reversal of 155020130304 is 403031020551.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11095227 + ... + 11109189.

It is an arithmetic number, because the mean of its divisors is an integer number (2334955350).

Almost surely, 2^155020130304 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 155020130304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224155713600).

155020130304 is an abundant number, since it is smaller than the sum of its proper divisors (293291296896).

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

155020130304 is a wasteful number, since it uses less digits than its factorization.

155020130304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14140 (or 14120 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 155020130304 its reverse (403031020551), we get a palindrome (558051150855).

The spelling of 155020130304 in words is "one hundred fifty-five billion, twenty million, one hundred thirty thousand, three hundred four".