66112140255054 has 32 divisors (see below), whose sum is σ = 132245632544256. Its totient is φ = 22033821744480.

The previous prime is 66112140255043. The next prime is 66112140255079. The reversal of 66112140255054 is 45055204121166.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 66112140254997 and 66112140255015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1233615799 + ... + 1233669389.

It is an arithmetic number, because the mean of its divisors is an integer number (4132676017008).

Almost surely, 2^{66112140255054} is an apocalyptic number.

66112140255054 is an abundant number, since it is smaller than the sum of its proper divisors (66133492289202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66112140255054 is a wasteful number, since it uses less digits than its factorization.

66112140255054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82960.

The product of its (nonzero) digits is 288000, while the sum is 42.

The spelling of 66112140255054 in words is "sixty-six trillion, one hundred twelve billion, one hundred forty million, two hundred fifty-five thousand, fifty-four".