2155162055605 has 64 divisors (see below), whose sum is σ = 2991233484288. Its totient is φ = 1476441907200.

The previous prime is 2155162055591. The next prime is 2155162055611. The reversal of 2155162055605 is 5065502615512.

It is not a de Polignac number, because 2155162055605 - 2⁵ = 2155162055573 is a prime.

It is a super-2 number, since 2×2155162055605² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 144140880 + ... + 144155830.

It is an arithmetic number, because the mean of its divisors is an integer number (46738023192).

Almost surely, 2^{2155162055605} is an apocalyptic number.

It is an amenable number.

2155162055605 is a deficient number, since it is larger than the sum of its proper divisors (836071428683).

2155162055605 is a wasteful number, since it uses less digits than its factorization.

2155162055605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16846.

The product of its (nonzero) digits is 450000, while the sum is 43.

The spelling of 2155162055605 in words is "two trillion, one hundred fifty-five billion, one hundred sixty-two million, fifty-five thousand, six hundred five".