7439720904066 has 16 divisors (see below), whose sum is σ = 16232118336288. Its totient is φ = 2254460880000.

The previous prime is 7439720904061. The next prime is 7439720904131. The reversal of 7439720904066 is 6604090279347.

It is a junction number, because it is equal to n+sod(n) for n = 7439720903997 and 7439720904015.

It is not an unprimeable number, because it can be changed into a prime (7439720904061) 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, 56361521935 + ... + 56361522066.

It is an arithmetic number, because the mean of its divisors is an integer number (1014507396018).

Almost surely, 2^{7439720904066} is an apocalyptic number.

7439720904066 is an abundant number, since it is smaller than the sum of its proper divisors (8792397432222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7439720904066 is a wasteful number, since it uses less digits than its factorization.

7439720904066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112723044017.

The product of its (nonzero) digits is 13716864, while the sum is 57.

The spelling of 7439720904066 in words is "seven trillion, four hundred thirty-nine billion, seven hundred twenty million, nine hundred four thousand, sixty-six".