155979168 has 96 divisors (see below), whose sum is σ = 427291200. Its totient is φ = 49760256.

The previous prime is 155979163. The next prime is 155979203. The reversal of 155979168 is 861979551.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 155979168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155979163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498180 + ... + 498492.

It is an arithmetic number, because the mean of its divisors is an integer number (4450950).

Almost surely, 2^155979168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155979168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213645600).

155979168 is an abundant number, since it is smaller than the sum of its proper divisors (271312032).

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

155979168 is a wasteful number, since it uses less digits than its factorization.

155979168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 526 counting only the distinct ones).

The product of its digits is 680400, while the sum is 51.

The square root of 155979168 is about 12489.1620215289. The cubic root of 155979168 is about 538.2972979443.

The spelling of 155979168 in words is "one hundred fifty-five million, nine hundred seventy-nine thousand, one hundred sixty-eight".