155878268 has 96 divisors (see below), whose sum is σ = 359310336. Its totient is φ = 57480192.

The previous prime is 155878267. The next prime is 155878309. The reversal of 155878268 is 862878551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155878267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 359780 + ... + 360212.

It is an arithmetic number, because the mean of its divisors is an integer number (3742816).

Almost surely, 2^155878268 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 155878268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179655168).

155878268 is an abundant number, since it is smaller than the sum of its proper divisors (203432068).

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

155878268 is a wasteful number, since it uses less digits than its factorization.

155878268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523 (or 521 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 50.

The square root of 155878268 is about 12485.1218656447. The cubic root of 155878268 is about 538.1812014299.

The spelling of 155878268 in words is "one hundred fifty-five million, eight hundred seventy-eight thousand, two hundred sixty-eight".