155252120232 has 128 divisors (see below), whose sum is σ = 452099957760. Its totient is φ = 43954014720.

The previous prime is 155252120227. The next prime is 155252120263. The reversal of 155252120232 is 232021252551.

155252120232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 155252120232.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36213 + ... + 558404.

It is an arithmetic number, because the mean of its divisors is an integer number (3532030920).

Almost surely, 2^155252120232 is an apocalyptic number.

155252120232 is a gapful number since it is divisible by the number (12) 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 155252120232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226049978880).

155252120232 is an abundant number, since it is smaller than the sum of its proper divisors (296847837528).

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

155252120232 is a wasteful number, since it uses less digits than its factorization.

155252120232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594703 (or 594699 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 155252120232 its reverse (232021252551), we get a palindrome (387273372783).

The spelling of 155252120232 in words is "one hundred fifty-five billion, two hundred fifty-two million, one hundred twenty thousand, two hundred thirty-two".