155012156525112 has 256 divisors, whose sum is σ = 433587906201600. Its totient is φ = 45946706534400.

The previous prime is 155012156525059. The next prime is 155012156525117. The reversal of 155012156525112 is 211525651210551.

It is a super-2 number, since 2×155012156525112² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3366074487 + ... + 3366120537.

It is an arithmetic number, because the mean of its divisors is an integer number (1693702758600).

Almost surely, 2^{155012156525112} is an apocalyptic number.

155012156525112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155012156525112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216793953100800).

155012156525112 is an abundant number, since it is smaller than the sum of its proper divisors (278575749676488).

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

155012156525112 is a wasteful number, since it uses less digits than its factorization.

155012156525112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52206 (or 52202 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 42.

The spelling of 155012156525112 in words is "one hundred fifty-five trillion, twelve billion, one hundred fifty-six million, five hundred twenty-five thousand, one hundred twelve".