1720372338560 has 64 divisors (see below), whose sum is σ = 4114101272400. Its totient is φ = 687925370880.

The previous prime is 1720372338557. The next prime is 1720372338631. The reversal of 1720372338560 is 658332730271.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1541855 + ... + 2412065.

Almost surely, 2^{1720372338560} is an apocalyptic number.

1720372338560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1720372338560 is an abundant number, since it is smaller than the sum of its proper divisors (2393728933840).

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

1720372338560 is an equidigital number, since it uses as much as digits as its factorization.

1720372338560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873319 (or 873307 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 1720372338560 in words is "one trillion, seven hundred twenty billion, three hundred seventy-two million, three hundred thirty-eight thousand, five hundred sixty".