20016622021612 has 24 divisors (see below), whose sum is σ = 35039792951856. Its totient is φ = 10005253099008.

The previous prime is 20016622021607. The next prime is 20016622021703. The reversal of 20016622021612 is 21612022661002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182733763 + ... + 182843269.

It is an arithmetic number, because the mean of its divisors is an integer number (1459991372994).

Almost surely, 2^{20016622021612} is an apocalyptic number.

It is an amenable number.

20016622021612 is a deficient number, since it is larger than the sum of its proper divisors (15023170930244).

20016622021612 is a wasteful number, since it uses less digits than its factorization.

20016622021612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123057 (or 123055 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 20016622021612 its reverse (21612022661002), we get a palindrome (41628644682614).

The spelling of 20016622021612 in words is "twenty trillion, sixteen billion, six hundred twenty-two million, twenty-one thousand, six hundred twelve".