555161161555 has 64 divisors (see below), whose sum is σ = 947085447168. Its totient is φ = 300661954560.

The previous prime is 555161161547. The next prime is 555161161579.

It is a happy number.

555161161555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 555161161555 - 2³ = 555161161547 is a prime.

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 63 ways as a sum of consecutive naturals, for example, 3177307 + ... + 3347476.

It is an arithmetic number, because the mean of its divisors is an integer number (14798210112).

Almost surely, 2^555161161555 is an apocalyptic number.

555161161555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

555161161555 is a deficient number, since it is larger than the sum of its proper divisors (391924285613).

555161161555 is a wasteful number, since it uses less digits than its factorization.

555161161555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6524836.

The product of its digits is 562500, while the sum is 46.

The spelling of 555161161555 in words is "five hundred fifty-five billion, one hundred sixty-one million, one hundred sixty-one thousand, five hundred fifty-five".