155359968 has 24 divisors (see below), whose sum is σ = 407820168. Its totient is φ = 51786624.

The previous prime is 155359951. The next prime is 155359969. The reversal of 155359968 is 869953551.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×155359968² = 48273439313922048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 155359968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155359969) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 809071 + ... + 809262.

It is an arithmetic number, because the mean of its divisors is an integer number (16992507).

Almost surely, 2^155359968 is an apocalyptic number.

It is an amenable number.

155359968 is an abundant number, since it is smaller than the sum of its proper divisors (252460200).

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

155359968 is a wasteful number, since it uses less digits than its factorization.

155359968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618346 (or 1618338 counting only the distinct ones).

The product of its digits is 1458000, while the sum is 51.

The square root of 155359968 is about 12464.3478770452. The cubic root of 155359968 is about 537.5840494488.

The spelling of 155359968 in words is "one hundred fifty-five million, three hundred fifty-nine thousand, nine hundred sixty-eight".