155542514120 has 64 divisors (see below), whose sum is σ = 400006512000. Its totient is φ = 53323522560.

The previous prime is 155542514111. The next prime is 155542514123. The reversal of 155542514120 is 21415245551.

155542514120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (155542514123) 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 15 ways as a sum of consecutive naturals, for example, 3632435 + ... + 3675005.

It is an arithmetic number, because the mean of its divisors is an integer number (6250101750).

Almost surely, 2^155542514120 is an apocalyptic number.

155542514120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155542514120 is an abundant number, since it is smaller than the sum of its proper divisors (244463997880).

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

155542514120 is a wasteful number, since it uses less digits than its factorization.

155542514120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55638 (or 55634 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 35.

Adding to 155542514120 its reverse (21415245551), we get a palindrome (176957759671).

The spelling of 155542514120 in words is "one hundred fifty-five billion, five hundred forty-two million, five hundred fourteen thousand, one hundred twenty".