1720016373220 has 24 divisors (see below), whose sum is σ = 3612063619584. Its totient is φ = 688000980576.

The previous prime is 1720016373197. The next prime is 1720016373221. The reversal of 1720016373220 is 223736100271.

It is not an unprimeable number, because it can be changed into a prime (1720016373221) 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, 2944317 + ... + 3479803.

It is an arithmetic number, because the mean of its divisors is an integer number (150502650816).

Almost surely, 2^{1720016373220} is an apocalyptic number.

1720016373220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1720016373220 is an abundant number, since it is smaller than the sum of its proper divisors (1892047246364).

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

1720016373220 is a wasteful number, since it uses less digits than its factorization.

1720016373220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696099 (or 696097 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The spelling of 1720016373220 in words is "one trillion, seven hundred twenty billion, sixteen million, three hundred seventy-three thousand, two hundred twenty".