20116723514642 has 16 divisors (see below), whose sum is σ = 30244917447360. Its totient is φ = 10035086944272.

The previous prime is 20116723514623. The next prime is 20116723514647. The reversal of 20116723514642 is 24641532761102.

It is a junction number, because it is equal to n+sod(n) for n = 20116723514593 and 20116723514602.

It is not an unprimeable number, because it can be changed into a prime (20116723514647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15191084 + ... + 16462152.

It is an arithmetic number, because the mean of its divisors is an integer number (1890307340460).

Almost surely, 2^{20116723514642} is an apocalyptic number.

20116723514642 is a deficient number, since it is larger than the sum of its proper divisors (10128193932718).

20116723514642 is a wasteful number, since it uses less digits than its factorization.

20116723514642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289377.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 20116723514642 in words is "twenty trillion, one hundred sixteen billion, seven hundred twenty-three million, five hundred fourteen thousand, six hundred forty-two".