55156444465155 has 32 divisors (see below), whose sum is σ = 96275821114368. Its totient is φ = 26741753414400.

The previous prime is 55156444465079. The next prime is 55156444465363.

55156444465155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55156444465155 - 2¹⁰ = 55156444464131 is a prime.

It is a super-3 number, since 3×55156444465155³ (a number of 42 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1023942 + ... + 10552788.

It is an arithmetic number, because the mean of its divisors is an integer number (3008619409824).

Almost surely, 2^{55156444465155} is an apocalyptic number.

55156444465155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55156444465155 is a deficient number, since it is larger than the sum of its proper divisors (41119376649213).

55156444465155 is a wasteful number, since it uses less digits than its factorization.

55156444465155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9563947.

The product of its digits is 144000000, while the sum is 60.

The spelling of 55156444465155 in words is "fifty-five trillion, one hundred fifty-six billion, four hundred forty-four million, four hundred sixty-five thousand, one hundred fifty-five".