660026040202 has 4 divisors (see below), whose sum is σ = 990039060306. Its totient is φ = 330013020100.

The previous prime is 660026040187. The next prime is 660026040239. The reversal of 660026040202 is 202040620066.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 650860084081 + 9165956121 = 806759^2 + 95739^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165006510049 + ... + 165006510052.

Almost surely, 2^660026040202 is an apocalyptic number.

660026040202 is a deficient number, since it is larger than the sum of its proper divisors (330013020104).

660026040202 is a wasteful number, since it uses less digits than its factorization.

660026040202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330013020103.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 660026040202 its reverse (202040620066), we get a palindrome (862066660268).

The spelling of 660026040202 in words is "six hundred sixty billion, twenty-six million, forty thousand, two hundred two".