142645366705 has 4 divisors (see below), whose sum is σ = 171174440052. Its totient is φ = 114116293360.

The previous prime is 142645366651. The next prime is 142645366723. The reversal of 142645366705 is 507663546241.

142645366705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 507663546241 = 15661 ⋅32415781.

It can be written as a sum of positive squares in 2 ways, for example, as 103973357601 + 38672009104 = 322449^2 + 196652^2 .

It is not a de Polignac number, because 142645366705 - 2¹⁷ = 142645235633 is a prime.

It is a super-5 number, since 5×142645366705⁵ (a number of 57 digits) contains 55555 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14264536666 + ... + 14264536675.

It is an arithmetic number, because the mean of its divisors is an integer number (42793610013).

Almost surely, 2^142645366705 is an apocalyptic number.

It is an amenable number.

142645366705 is a deficient number, since it is larger than the sum of its proper divisors (28529073347).

142645366705 is an equidigital number, since it uses as much as digits as its factorization.

142645366705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28529073346.

The product of its (nonzero) digits is 3628800, while the sum is 49.

The spelling of 142645366705 in words is "one hundred forty-two billion, six hundred forty-five million, three hundred sixty-six thousand, seven hundred five".