1666463502202 has 8 divisors (see below), whose sum is σ = 2499701793876. Its totient is φ = 833229570912.

The previous prime is 1666463502199. The next prime is 1666463502233. The reversal of 1666463502202 is 2022053646661.

It can be written as a sum of positive squares in 2 ways, for example, as 1470250826521 + 196212675681 = 1212539^2 + 442959^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 145438 + ... + 1831414.

Almost surely, 2^{1666463502202} is an apocalyptic number.

1666463502202 is a deficient number, since it is larger than the sum of its proper divisors (833238291674).

1666463502202 is a wasteful number, since it uses less digits than its factorization.

1666463502202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180192.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 1666463502202 in words is "one trillion, six hundred sixty-six billion, four hundred sixty-three million, five hundred two thousand, two hundred two".