20016566122 has 64 divisors (see below), whose sum is σ = 37632107520. Its totient is φ = 7785824256.

The previous prime is 20016566117. The next prime is 20016566149. The reversal of 20016566122 is 22166561002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8398543 + ... + 8400925.

It is an arithmetic number, because the mean of its divisors is an integer number (588001680).

Almost surely, 2^20016566122 is an apocalyptic number.

20016566122 is a deficient number, since it is larger than the sum of its proper divisors (17615541398).

20016566122 is a wasteful number, since it uses less digits than its factorization.

20016566122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3655.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 20016566122 in words is "twenty billion, sixteen million, five hundred sixty-six thousand, one hundred twenty-two".