202278205106 has 24 divisors (see below), whose sum is σ = 313080450156. Its totient is φ = 98006919200.

The previous prime is 202278205091. The next prime is 202278205117. The reversal of 202278205106 is 601502872202.

It can be written as a sum of positive squares in 2 ways, for example, as 175171546225 + 27106658881 = 418535^2 + 164641^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219560 + ... + 672876.

Almost surely, 2^202278205106 is an apocalyptic number.

202278205106 is a deficient number, since it is larger than the sum of its proper divisors (110802245050).

202278205106 is a wasteful number, since it uses less digits than its factorization.

202278205106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453514 (or 453467 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 202278205106 in words is "two hundred two billion, two hundred seventy-eight million, two hundred five thousand, one hundred six".