20013777125516 has 6 divisors (see below), whose sum is σ = 35024109969660. Its totient is φ = 10006888562756.

The previous prime is 20013777125383. The next prime is 20013777125567. The reversal of 20013777125516 is 61552177731002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2501722140686 + ... + 2501722140693.

It is an arithmetic number, because the mean of its divisors is an integer number (5837351661610).

Almost surely, 2^{20013777125516} is an apocalyptic number.

It is an amenable number.

20013777125516 is a deficient number, since it is larger than the sum of its proper divisors (15010332844144).

20013777125516 is a wasteful number, since it uses less digits than its factorization.

20013777125516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003444281383 (or 5003444281381 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 47.

The spelling of 20013777125516 in words is "twenty trillion, thirteen billion, seven hundred seventy-seven million, one hundred twenty-five thousand, five hundred sixteen".