155050216023212 has 24 divisors (see below), whose sum is σ = 284419965196752. Its totient is φ = 73875315628800.

The previous prime is 155050216023211. The next prime is 155050216023221. The reversal of 155050216023212 is 212320612050551.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (155050216023211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10993343489 + ... + 10993357592.

It is an arithmetic number, because the mean of its divisors is an integer number (11850831883198).

Almost surely, 2^{155050216023212} is an apocalyptic number.

It is an amenable number.

155050216023212 is a deficient number, since it is larger than the sum of its proper divisors (129369749173540).

155050216023212 is a wasteful number, since it uses less digits than its factorization.

155050216023212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21986701169 (or 21986701167 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 155050216023212 its reverse (212320612050551), we get a palindrome (367370828073763).

The spelling of 155050216023212 in words is "one hundred fifty-five trillion, fifty billion, two hundred sixteen million, twenty-three thousand, two hundred twelve".