155344320 has 84 divisors (see below), whose sum is σ = 534329640. Its totient is φ = 41424384.

The previous prime is 155344313. The next prime is 155344339. The reversal of 155344320 is 23443551.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 24090 + ... + 29849.

Almost surely, 2^155344320 is an apocalyptic number.

155344320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155344320 is an abundant number, since it is smaller than the sum of its proper divisors (378985320).

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

155344320 is a wasteful number, since it uses less digits than its factorization.

155344320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53962 (or 53949 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 155344320 is about 12463.7201509020. The cubic root of 155344320 is about 537.5660001882.

Adding to 155344320 its reverse (23443551), we get a palindrome (178787871).

The spelling of 155344320 in words is "one hundred fifty-five million, three hundred forty-four thousand, three hundred twenty".