1720661304130 has 32 divisors (see below), whose sum is σ = 3263119479360. Its totient is φ = 651456250560.

The previous prime is 1720661304119. The next prime is 1720661304233. The reversal of 1720661304130 is 314031660271.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3841536 + ... + 4265995.

It is an arithmetic number, because the mean of its divisors is an integer number (101972483730).

Almost surely, 2^{1720661304130} is an apocalyptic number.

1720661304130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1720661304130 is a deficient number, since it is larger than the sum of its proper divisors (1542458175230).

1720661304130 is a wasteful number, since it uses less digits than its factorization.

1720661304130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8108674.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 1720661304130 in words is "one trillion, seven hundred twenty billion, six hundred sixty-one million, three hundred four thousand, one hundred thirty".