155011443612612 has 48 divisors (see below), whose sum is σ = 363144154867200. Its totient is φ = 51463640101120.

The previous prime is 155011443612533. The next prime is 155011443612643. The reversal of 155011443612612 is 216216344110551.

It is a happy number.

It is a super-2 number, since 2×155011443612612² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 22886187 + ... + 28875602.

It is an arithmetic number, because the mean of its divisors is an integer number (7565503226400).

Almost surely, 2^{155011443612612} is an apocalyptic number.

155011443612612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155011443612612 is an abundant number, since it is smaller than the sum of its proper divisors (208132711254588).

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

155011443612612 is a wasteful number, since it uses less digits than its factorization.

155011443612612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51762796 (or 51762794 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 155011443612612 in words is "one hundred fifty-five trillion, eleven billion, four hundred forty-three million, six hundred twelve thousand, six hundred twelve".