155204143500011 has 4 divisors (see below), whose sum is σ = 156948010281000. Its totient is φ = 153460276719024.

The previous prime is 155204143499969. The next prime is 155204143500041. The reversal of 155204143500011 is 110005341402551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155204143500011 - 2¹⁸ = 155204143237867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155204143500041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 871933390361 + ... + 871933390538.

It is an arithmetic number, because the mean of its divisors is an integer number (39237002570250).

Almost surely, 2^{155204143500011} is an apocalyptic number.

155204143500011 is a deficient number, since it is larger than the sum of its proper divisors (1743866780989).

155204143500011 is an equidigital number, since it uses as much as digits as its factorization.

155204143500011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743866780988.

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 155204143500011 its reverse (110005341402551), we get a palindrome (265209484902562).

The spelling of 155204143500011 in words is "one hundred fifty-five trillion, two hundred four billion, one hundred forty-three million, five hundred thousand, eleven".