155213316216 has 96 divisors (see below), whose sum is σ = 480494158560. Its totient is φ = 44340016896.

The previous prime is 155213316211. The next prime is 155213316217. The reversal of 155213316216 is 612613312551.

155213316216 is a `hidden beast` number, since 1 + 5 + 5 + 21 + 3 + 3 + 1 + 621 + 6 = 666.

155213316216 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155213316211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4059846 + ... + 4097898.

It is an arithmetic number, because the mean of its divisors is an integer number (5005147485).

Almost surely, 2^155213316216 is an apocalyptic number.

It is an amenable number.

155213316216 is an abundant number, since it is smaller than the sum of its proper divisors (325280842344).

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

155213316216 is a wasteful number, since it uses less digits than its factorization.

155213316216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46165 (or 46158 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

Adding to 155213316216 its reverse (612613312551), we get a palindrome (767826628767).

The spelling of 155213316216 in words is "one hundred fifty-five billion, two hundred thirteen million, three hundred sixteen thousand, two hundred sixteen".