155012156525113 has 4 divisors (see below), whose sum is σ = 155021148488320. Its totient is φ = 155003164561908.

The previous prime is 155012156525059. The next prime is 155012156525117. The reversal of 155012156525113 is 311525651210551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 155012156525113 - 2⁹ = 155012156524601 is a prime.

It is a super-2 number, since 2×155012156525113² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155012156525113.

It is not an unprimeable number, because it can be changed into a prime (155012156525117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4495955745 + ... + 4495990222.

It is an arithmetic number, because the mean of its divisors is an integer number (38755287122080).

Almost surely, 2^{155012156525113} is an apocalyptic number.

It is an amenable number.

155012156525113 is a deficient number, since it is larger than the sum of its proper divisors (8991963207).

155012156525113 is an equidigital number, since it uses as much as digits as its factorization.

155012156525113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8991963206.

The product of its (nonzero) digits is 225000, while the sum is 43.

The spelling of 155012156525113 in words is "one hundred fifty-five trillion, twelve billion, one hundred fifty-six million, five hundred twenty-five thousand, one hundred thirteen".