155011213140133 has 12 divisors (see below), whose sum is σ = 180322026354912. Its totient is φ = 132864646715640.

The previous prime is 155011213140013. The next prime is 155011213140137. The reversal of 155011213140133 is 331041312110551.

It is a happy number.

155011213140133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155011213140133 - 2⁹ = 155011213139621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155011213140095 and 155011213140104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155011213140137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21963363 + ... + 28149808.

It is an arithmetic number, because the mean of its divisors is an integer number (15026835529576).

Almost surely, 2^{155011213140133} is an apocalyptic number.

It is an amenable number.

155011213140133 is a deficient number, since it is larger than the sum of its proper divisors (25310813214779).

155011213140133 is an equidigital number, since it uses as much as digits as its factorization.

155011213140133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50176312 (or 50176305 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

Adding to 155011213140133 its reverse (331041312110551), we get a palindrome (486052525250684).

The spelling of 155011213140133 in words is "one hundred fifty-five trillion, eleven billion, two hundred thirteen million, one hundred forty thousand, one hundred thirty-three".