55155100877511 has 16 divisors (see below), whose sum is σ = 76084115378400. Its totient is φ = 35498347286528.

The previous prime is 55155100877507. The next prime is 55155100877567. The reversal of 55155100877511 is 11577800155155.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55155100877511 - 2² = 55155100877507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55155100879511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32988546 + ... + 34620143.

It is an arithmetic number, because the mean of its divisors is an integer number (4755257211150).

Almost surely, 2^{55155100877511} is an apocalyptic number.

55155100877511 is a deficient number, since it is larger than the sum of its proper divisors (20929014500889).

55155100877511 is a wasteful number, since it uses less digits than its factorization.

55155100877511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67618098.

The product of its (nonzero) digits is 1225000, while the sum is 51.

The spelling of 55155100877511 in words is "fifty-five trillion, one hundred fifty-five billion, one hundred million, eight hundred seventy-seven thousand, five hundred eleven".