20650062777245 has 12 divisors (see below), whose sum is σ = 27237603465660. Its totient is φ = 15018227473920.

The previous prime is 20650062777241. The next prime is 20650062777247. The reversal of 20650062777245 is 54277726005602.

It can be written as a sum of positive squares in 2 ways, for example, as 2185699084921 + 18464363692324 = 1478411^2 + 4297018^2 .

It is not a de Polignac number, because 20650062777245 - 2² = 20650062777241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20650062777241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17066166980 + ... + 17066168189.

It is an arithmetic number, because the mean of its divisors is an integer number (2269800288805).

Almost surely, 2^{20650062777245} is an apocalyptic number.

It is an amenable number.

20650062777245 is a deficient number, since it is larger than the sum of its proper divisors (6587540688415).

20650062777245 is a wasteful number, since it uses less digits than its factorization.

20650062777245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34132335196 (or 34132335185 counting only the distinct ones).

The product of its (nonzero) digits is 9878400, while the sum is 53.

The spelling of 20650062777245 in words is "twenty trillion, six hundred fifty billion, sixty-two million, seven hundred seventy-seven thousand, two hundred forty-five".