55105155605151 has 12 divisors (see below), whose sum is σ = 80384418408840. Its totient is φ = 36373040002800.

The previous prime is 55105155605119. The next prime is 55105155605209. The reversal of 55105155605151 is 15150655150155.

55105155605151 is a `hidden beast` number, since 5 + 5 + 10 + 5 + 15 + 5 + 605 + 15 + 1 = 666.

It is not a de Polignac number, because 55105155605151 - 2⁵ = 55105155605119 is a prime.

It is a super-3 number, since 3×55105155605151³ (a number of 42 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55105155605097 and 55105155605106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55105155604151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30310865761 + ... + 30310867578.

It is an arithmetic number, because the mean of its divisors is an integer number (6698701534070).

Almost surely, 2^{55105155605151} is an apocalyptic number.

55105155605151 is a deficient number, since it is larger than the sum of its proper divisors (25279262803689).

55105155605151 is a wasteful number, since it uses less digits than its factorization.

55105155605151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60621733446 (or 60621733443 counting only the distinct ones).

The product of its (nonzero) digits is 468750, while the sum is 45.

The spelling of 55105155605151 in words is "fifty-five trillion, one hundred five billion, one hundred fifty-five million, six hundred five thousand, one hundred fifty-one".