155242333320 has 256 divisors, whose sum is σ = 500021683200. Its totient is φ = 38420152320.

The previous prime is 155242333319. The next prime is 155242333381. The reversal of 155242333320 is 23333242551.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 82971985 + ... + 82973855.

It is an arithmetic number, because the mean of its divisors is an integer number (1953209700).

Almost surely, 2^155242333320 is an apocalyptic number.

155242333320 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 155242333320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250010841600).

155242333320 is an abundant number, since it is smaller than the sum of its proper divisors (344779349880).

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

155242333320 is a wasteful number, since it uses less digits than its factorization.

155242333320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448 (or 2444 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 33.

Adding to 155242333320 its reverse (23333242551), we get a palindrome (178575575871).

The spelling of 155242333320 in words is "one hundred fifty-five billion, two hundred forty-two million, three hundred thirty-three thousand, three hundred twenty".