202455660066 has 16 divisors (see below), whose sum is σ = 441721440288. Its totient is φ = 61350200000.

The previous prime is 202455660019. The next prime is 202455660073. The reversal of 202455660066 is 660066554202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1533754935 + ... + 1533755066.

It is an arithmetic number, because the mean of its divisors is an integer number (27607590018).

Almost surely, 2^202455660066 is an apocalyptic number.

202455660066 is an abundant number, since it is smaller than the sum of its proper divisors (239265780222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202455660066 is a wasteful number, since it uses less digits than its factorization.

202455660066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067510017.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 202455660066 in words is "two hundred two billion, four hundred fifty-five million, six hundred sixty thousand, sixty-six".