80555832566121 has 32 divisors (see below), whose sum is σ = 119395124259840. Its totient is φ = 47904162177600.

The previous prime is 80555832566101. The next prime is 80555832566123. The reversal of 80555832566121 is 12166523855508.

It is a happy number.

It is not a de Polignac number, because 80555832566121 - 2⁵ = 80555832566089 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (80555832566123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108344475 + ... + 109085456.

It is an arithmetic number, because the mean of its divisors is an integer number (3731097633120).

Almost surely, 2^{80555832566121} is an apocalyptic number.

It is an amenable number.

80555832566121 is a deficient number, since it is larger than the sum of its proper divisors (38839291693719).

80555832566121 is a wasteful number, since it uses less digits than its factorization.

80555832566121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217430157.

The product of its (nonzero) digits is 17280000, while the sum is 57.

It can be divided in two parts, 80555832 and 566121, that added together give a triangular number (81121953 = T₁₂₇₃₇).

The spelling of 80555832566121 in words is "eighty trillion, five hundred fifty-five billion, eight hundred thirty-two million, five hundred sixty-six thousand, one hundred twenty-one".