66112140255125 has 64 divisors (see below), whose sum is σ = 84319001395200. Its totient is φ = 51742290600000.

The previous prime is 66112140255103. The next prime is 66112140255221. The reversal of 66112140255125 is 52155204121166.

It is not a de Polignac number, because 66112140255125 - 2²² = 66112136060821 is a prime.

It is a super-2 number, since 2×66112140255125² (a number of 28 digits) contains 22 as substring.

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, 852460100 + ... + 852537650.

It is an arithmetic number, because the mean of its divisors is an integer number (1317484396800).

Almost surely, 2^{66112140255125} is an apocalyptic number.

It is an amenable number.

66112140255125 is a deficient number, since it is larger than the sum of its proper divisors (18206861140075).

66112140255125 is a wasteful number, since it uses less digits than its factorization.

66112140255125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78435 (or 78425 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 41.

The spelling of 66112140255125 in words is "sixty-six trillion, one hundred twelve billion, one hundred forty million, two hundred fifty-five thousand, one hundred twenty-five".