20505245252002 has 24 divisors (see below), whose sum is σ = 35801825684544. Its totient is φ = 8782493631912.

The previous prime is 20505245251961. The next prime is 20505245252017. The reversal of 20505245252002 is 20025254250502.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64944318 + ... + 65259289.

It is an arithmetic number, because the mean of its divisors is an integer number (1491742736856).

Almost surely, 2^{20505245252002} is an apocalyptic number.

20505245252002 is a deficient number, since it is larger than the sum of its proper divisors (15296580432542).

20505245252002 is a wasteful number, since it uses less digits than its factorization.

20505245252002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130205230 (or 130205223 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 34.

The spelling of 20505245252002 in words is "twenty trillion, five hundred five billion, two hundred forty-five million, two hundred fifty-two thousand, two".