7157730020720 has 20 divisors (see below), whose sum is σ = 16641722298360. Its totient is φ = 2863092008256.

The previous prime is 7157730020689. The next prime is 7157730020723. The reversal of 7157730020720 is 270200377517.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7157730020723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44735812550 + ... + 44735812709.

It is an arithmetic number, because the mean of its divisors is an integer number (832086114918).

Almost surely, 2^{7157730020720} is an apocalyptic number.

It is an amenable number.

7157730020720 is an abundant number, since it is smaller than the sum of its proper divisors (9483992277640).

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

7157730020720 is a wasteful number, since it uses less digits than its factorization.

7157730020720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89471625272 (or 89471625266 counting only the distinct ones).

The product of its (nonzero) digits is 144060, while the sum is 41.

The spelling of 7157730020720 in words is "seven trillion, one hundred fifty-seven billion, seven hundred thirty million, twenty thousand, seven hundred twenty".