20673367416842 has 16 divisors (see below), whose sum is σ = 35440343518272. Its totient is φ = 8859943334880.

The previous prime is 20673367416809. The next prime is 20673367417033. The reversal of 20673367416842 is 24861476337602.

It is a happy number.

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, 4117568 + ... + 7635515.

It is an arithmetic number, because the mean of its divisors is an integer number (2215021469892).

Almost surely, 2^{20673367416842} is an apocalyptic number.

20673367416842 is a deficient number, since it is larger than the sum of its proper divisors (14766976101430).

20673367416842 is a wasteful number, since it uses less digits than its factorization.

20673367416842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11878733.

The product of its (nonzero) digits is 48771072, while the sum is 59.

The spelling of 20673367416842 in words is "twenty trillion, six hundred seventy-three billion, three hundred sixty-seven million, four hundred sixteen thousand, eight hundred forty-two".