155330433212 has 6 divisors (see below), whose sum is σ = 271828258128. Its totient is φ = 77665216604.

The previous prime is 155330433211. The next prime is 155330433217. The reversal of 155330433212 is 212334033551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155330433211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19416304148 + ... + 19416304155.

It is an arithmetic number, because the mean of its divisors is an integer number (45304709688).

Almost surely, 2^155330433212 is an apocalyptic number.

It is an amenable number.

155330433212 is a deficient number, since it is larger than the sum of its proper divisors (116497824916).

155330433212 is a wasteful number, since it uses less digits than its factorization.

155330433212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38832608307 (or 38832608305 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 155330433212 its reverse (212334033551), we get a palindrome (367664466763).

The spelling of 155330433212 in words is "one hundred fifty-five billion, three hundred thirty million, four hundred thirty-three thousand, two hundred twelve".