155612020302012 has 24 divisors (see below), whose sum is σ = 363095250590800. Its totient is φ = 51870596783616.

The previous prime is 155612020302001. The next prime is 155612020302041. The reversal of 155612020302012 is 210203020216551.

155612020302012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800437 + ... + 17659692.

Almost surely, 2^{155612020302012} is an apocalyptic number.

155612020302012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155612020302012 is an abundant number, since it is smaller than the sum of its proper divisors (207483230288788).

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

155612020302012 is a wasteful number, since it uses less digits than its factorization.

155612020302012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19162605 (or 19162603 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 155612020302012 its reverse (210203020216551), we get a palindrome (365815040518563).

The spelling of 155612020302012 in words is "one hundred fifty-five trillion, six hundred twelve billion, twenty million, three hundred two thousand, twelve".