155000216 has 32 divisors (see below), whose sum is σ = 332640000. Its totient is φ = 66329376.

The previous prime is 155000201. The next prime is 155000227. The reversal of 155000216 is 612000551.

155000216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45335 + ... + 48633.

It is an arithmetic number, because the mean of its divisors is an integer number (10395000).

Almost surely, 2^155000216 is an apocalyptic number.

It is an amenable number.

155000216 is an abundant number, since it is smaller than the sum of its proper divisors (177639784).

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

155000216 is a wasteful number, since it uses less digits than its factorization.

155000216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4151 (or 4147 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 155000216 is about 12449.9082727545. The cubic root of 155000216 is about 537.1687850178.

Adding to 155000216 its reverse (612000551), we get a palindrome (767000767).

The spelling of 155000216 in words is "one hundred fifty-five million, two hundred sixteen", and thus it is an aban number.