155574216 has 96 divisors (see below), whose sum is σ = 502740000. Its totient is φ = 44446752.

The previous prime is 155574173. The next prime is 155574227. The reversal of 155574216 is 612475551.

155574216 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3235 + ... + 17933.

It is an arithmetic number, because the mean of its divisors is an integer number (5236875).

Almost surely, 2^155574216 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 155574216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251370000).

155574216 is an abundant number, since it is smaller than the sum of its proper divisors (347165784).

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

155574216 is a wasteful number, since it uses less digits than its factorization.

155574216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14728 (or 14711 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 155574216 is about 12472.9393488464. The cubic root of 155574216 is about 537.8310530261.

The spelling of 155574216 in words is "one hundred fifty-five million, five hundred seventy-four thousand, two hundred sixteen".