20613543613016 has 16 divisors (see below), whose sum is σ = 38754014640000. Its totient is φ = 10279139709024.

The previous prime is 20613543612971. The next prime is 20613543613027. The reversal of 20613543613016 is 61031634531602.

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, 3454009016 + ... + 3454014983.

It is an arithmetic number, because the mean of its divisors is an integer number (2422125915000).

Almost surely, 2^{20613543613016} is an apocalyptic number.

It is an amenable number.

20613543613016 is a deficient number, since it is larger than the sum of its proper divisors (18140471026984).

20613543613016 is a wasteful number, since it uses less digits than its factorization.

20613543613016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6908024378 (or 6908024374 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 20613543613016 in words is "twenty trillion, six hundred thirteen billion, five hundred forty-three million, six hundred thirteen thousand, sixteen".