155011145202 has 20 divisors (see below), whose sum is σ = 347339788686. Its totient is φ = 51670381680.

The previous prime is 155011145173. The next prime is 155011145209. The reversal of 155011145202 is 202541110551.

It is a happy number.

155011145202 is a `hidden beast` number, since 15 + 501 + 1 + 145 + 2 + 0 + 2 = 666.

155011145202 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 134432955801 + 20578189401 = 366651^2 + 143451^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (155011145209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 478429299 + ... + 478429622.

Almost surely, 2^155011145202 is an apocalyptic number.

155011145202 is an abundant number, since it is smaller than the sum of its proper divisors (192328643484).

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

155011145202 is an equidigital number, since it uses as much as digits as its factorization.

155011145202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956858935 (or 956858926 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

Adding to 155011145202 its reverse (202541110551), we get a palindrome (357552255753).

The spelling of 155011145202 in words is "one hundred fifty-five billion, eleven million, one hundred forty-five thousand, two hundred two".