155453425120 has 144 divisors (see below), whose sum is σ = 427446957168. Its totient is φ = 53269923840.

The previous prime is 155453425109. The next prime is 155453425121. The reversal of 155453425120 is 21524354551.

It is a self number, because there is not a number n which added to its sum of digits gives 155453425120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155453425121) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 19133379 + ... + 19141501.

It is an arithmetic number, because the mean of its divisors is an integer number (2968381647).

Almost surely, 2^155453425120 is an apocalyptic number.

155453425120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155453425120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213723478584).

155453425120 is an abundant number, since it is smaller than the sum of its proper divisors (271993532048).

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

155453425120 is a wasteful number, since it uses less digits than its factorization.

155453425120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10593 (or 10578 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 37.

Adding to 155453425120 its reverse (21524354551), we get a palindrome (176977779671).

The spelling of 155453425120 in words is "one hundred fifty-five billion, four hundred fifty-three million, four hundred twenty-five thousand, one hundred twenty".