20401067417723 has 16 divisors (see below), whose sum is σ = 20968126984896. Its totient is φ = 19834838686080.

The previous prime is 20401067417719. The next prime is 20401067417737. The reversal of 20401067417723 is 32771476010402.

It is a cyclic number.

It is not a de Polignac number, because 20401067417723 - 2² = 20401067417719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20401067419723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282319865 + ... + 282392117.

It is an arithmetic number, because the mean of its divisors is an integer number (1310507936556).

Almost surely, 2^{20401067417723} is an apocalyptic number.

20401067417723 is a deficient number, since it is larger than the sum of its proper divisors (567059567173).

20401067417723 is a wasteful number, since it uses less digits than its factorization.

20401067417723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77894.

The product of its (nonzero) digits is 395136, while the sum is 44.

The spelling of 20401067417723 in words is "twenty trillion, four hundred one billion, sixty-seven million, four hundred seventeen thousand, seven hundred twenty-three".