142205511602 has 54 divisors (see below), whose sum is σ = 272821229919. Its totient is φ = 55388745720.

The previous prime is 142205511587. The next prime is 142205511607. The reversal of 142205511602 is 206115502241.

142205511602 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 71102755801 + 71102755801 = 266651^2 + 266651^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=266651.

It is not an unprimeable number, because it can be changed into a prime (142205511607) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 41062523 + ... + 41065985.

Almost surely, 2^142205511602 is an apocalyptic number.

142205511602 is a deficient number, since it is larger than the sum of its proper divisors (130615718317).

142205511602 is an frugal number, since it uses more digits than its factorization.

142205511602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6964 (or 3483 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The spelling of 142205511602 in words is "one hundred forty-two billion, two hundred five million, five hundred eleven thousand, six hundred two".