4020066940809 has 8 divisors (see below), whose sum is σ = 5362087062112. Its totient is φ = 2679045723360.

The previous prime is 4020066940807. The next prime is 4020066940837. The reversal of 4020066940809 is 9080496600204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4020066940809 - 2¹ = 4020066940807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4020066940807) 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, 249716572 + ... + 249732669.

It is an arithmetic number, because the mean of its divisors is an integer number (670260882764).

Almost surely, 2^{4020066940809} is an apocalyptic number.

It is an amenable number.

4020066940809 is a deficient number, since it is larger than the sum of its proper divisors (1342020121303).

4020066940809 is a wasteful number, since it uses less digits than its factorization.

4020066940809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499451927.

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 4020066940809 in words is "four trillion, twenty billion, sixty-six million, nine hundred forty thousand, eight hundred nine".