2020664026 has 4 divisors (see below), whose sum is σ = 3030996042. Its totient is φ = 1010332012.

The previous prime is 2020664021. The next prime is 2020664053. The reversal of 2020664026 is 6204660202.

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., 1663416225 + 357247801 = 40785^2 + 18901^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2020663985 and 2020664003.

It is not an unprimeable number, because it can be changed into a prime (2020664021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505166005 + ... + 505166008.

Almost surely, 2^2020664026 is an apocalyptic number.

2020664026 is a deficient number, since it is larger than the sum of its proper divisors (1010332016).

2020664026 is a wasteful number, since it uses less digits than its factorization.

2020664026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010332015.

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

The square root of 2020664026 is about 44951.7966937919. The cubic root of 2020664026 is about 1264.2453645109.

The spelling of 2020664026 in words is "two billion, twenty million, six hundred sixty-four thousand, twenty-six".