20016354550 has 24 divisors (see below), whose sum is σ = 37480302000. Its totient is φ = 7952803680.

The previous prime is 20016354541. The next prime is 20016354569. The reversal of 20016354550 is 5545361002.

It is a congruent number.

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, 1335930 + ... + 1350829.

It is an arithmetic number, because the mean of its divisors is an integer number (1561679250).

Almost surely, 2^20016354550 is an apocalyptic number.

20016354550 is a deficient number, since it is larger than the sum of its proper divisors (17463947450).

20016354550 is a wasteful number, since it uses less digits than its factorization.

20016354550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2686920 (or 2686915 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 20016354550 in words is "twenty billion, sixteen million, three hundred fifty-four thousand, five hundred fifty".