155047168 has 36 divisors (see below), whose sum is σ = 317872660. Its totient is φ = 75423744.

The previous prime is 155047141. The next prime is 155047169. The reversal of 155047168 is 861740551.

155047168 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 97772544 + 57274624 = 9888^2 + 7568^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155047169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1288 + ... + 17656.

Almost surely, 2^155047168 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 155047168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158936330).

155047168 is an abundant number, since it is smaller than the sum of its proper divisors (162825492).

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

155047168 is an equidigital number, since it uses as much as digits as its factorization.

155047168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16422 (or 16408 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 155047168 is about 12451.7937663615. The cubic root of 155047168 is about 537.2230184962.

The spelling of 155047168 in words is "one hundred fifty-five million, forty-seven thousand, one hundred sixty-eight".