1720661260118 has 8 divisors (see below), whose sum is σ = 2580997457280. Its totient is φ = 860328774360.

The previous prime is 1720661260117. The next prime is 1720661260141. The reversal of 1720661260118 is 8110621660271.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1720661260117) 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 3 ways as a sum of consecutive naturals, for example, 1331828 + ... + 2283656.

It is an arithmetic number, because the mean of its divisors is an integer number (322624682160).

Almost surely, 2^{1720661260118} is an apocalyptic number.

1720661260118 is a deficient number, since it is larger than the sum of its proper divisors (860336197162).

1720661260118 is an equidigital number, since it uses as much as digits as its factorization.

1720661260118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855702.

The product of its (nonzero) digits is 48384, while the sum is 41.

The spelling of 1720661260118 in words is "one trillion, seven hundred twenty billion, six hundred sixty-one million, two hundred sixty thousand, one hundred eighteen".