155255345212 has 12 divisors (see below), whose sum is σ = 296396568216. Its totient is φ = 70570611440.

The previous prime is 155255345143. The next prime is 155255345227. The reversal of 155255345212 is 212543552551.

It is a super-4 number, since 4×155255345212⁴ (a number of 46 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1764265243 + ... + 1764265330.

It is an arithmetic number, because the mean of its divisors is an integer number (24699714018).

Almost surely, 2^155255345212 is an apocalyptic number.

It is an amenable number.

155255345212 is a deficient number, since it is larger than the sum of its proper divisors (141141223004).

155255345212 is a wasteful number, since it uses less digits than its factorization.

155255345212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3528530588 (or 3528530586 counting only the distinct ones).

The product of its digits is 300000, while the sum is 40.

Adding to 155255345212 its reverse (212543552551), we get a palindrome (367798897763).

The spelling of 155255345212 in words is "one hundred fifty-five billion, two hundred fifty-five million, three hundred forty-five thousand, two hundred twelve".