20510105216248 has 16 divisors (see below), whose sum is σ = 38796769824480. Its totient is φ = 10164299929728.

The previous prime is 20510105216203. The next prime is 20510105216329. The reversal of 20510105216248 is 84261250101502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11344083840 + ... + 11344085647.

It is an arithmetic number, because the mean of its divisors is an integer number (2424798114030).

Almost surely, 2^{20510105216248} is an apocalyptic number.

It is an amenable number.

20510105216248 is a deficient number, since it is larger than the sum of its proper divisors (18286664608232).

20510105216248 is a wasteful number, since it uses less digits than its factorization.

20510105216248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22688169606 (or 22688169602 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The spelling of 20510105216248 in words is "twenty trillion, five hundred ten billion, one hundred five million, two hundred sixteen thousand, two hundred forty-eight".