142650566605 has 4 divisors (see below), whose sum is σ = 171180679932. Its totient is φ = 114120453280.

The previous prime is 142650566599. The next prime is 142650566609. The reversal of 142650566605 is 506665056241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 506665056241 = 199 ⋅2546055559.

It can be written as a sum of positive squares in 2 ways, for example, as 15442784361 + 127207782244 = 124269^2 + 356662^2 .

It is not a de Polignac number, because 142650566605 - 2³⁵ = 108290828237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142650566609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14265056656 + ... + 14265056665.

It is an arithmetic number, because the mean of its divisors is an integer number (42795169983).

Almost surely, 2^142650566605 is an apocalyptic number.

It is an amenable number.

142650566605 is a deficient number, since it is larger than the sum of its proper divisors (28530113327).

142650566605 is an equidigital number, since it uses as much as digits as its factorization.

142650566605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28530113326.

The product of its (nonzero) digits is 1296000, while the sum is 46.

The spelling of 142650566605 in words is "one hundred forty-two billion, six hundred fifty million, five hundred sixty-six thousand, six hundred five".