155556313234161 has 16 divisors (see below), whose sum is σ = 237190824092544. Its totient is φ = 88832084661504.

The previous prime is 155556313234151. The next prime is 155556313234177. The reversal of 155556313234161 is 161432313655551.

It is not a de Polignac number, because 155556313234161 - 2¹⁸ = 155556312972017 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (155556313234141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2384849386 + ... + 2384914611.

It is an arithmetic number, because the mean of its divisors is an integer number (14824426505784).

Almost surely, 2^{155556313234161} is an apocalyptic number.

It is an amenable number.

155556313234161 is a deficient number, since it is larger than the sum of its proper divisors (81634510858383).

155556313234161 is a wasteful number, since it uses less digits than its factorization.

155556313234161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4769765560.

The product of its digits is 4860000, while the sum is 51.

The spelling of 155556313234161 in words is "one hundred fifty-five trillion, five hundred fifty-six billion, three hundred thirteen million, two hundred thirty-four thousand, one hundred sixty-one".