1720016585642 has 16 divisors (see below), whose sum is σ = 2716426087200. Its totient is φ = 814561570800.

The previous prime is 1720016585629. The next prime is 1720016585647. The reversal of 1720016585642 is 2465856100271.

It is not an unprimeable number, because it can be changed into a prime (1720016585647) 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, 4915517 + ... + 5253792.

It is an arithmetic number, because the mean of its divisors is an integer number (169776630450).

Almost surely, 2^{1720016585642} is an apocalyptic number.

1720016585642 is a deficient number, since it is larger than the sum of its proper divisors (996409501558).

1720016585642 is a wasteful number, since it uses less digits than its factorization.

1720016585642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10173781.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 1720016585642 in words is "one trillion, seven hundred twenty billion, sixteen million, five hundred eighty-five thousand, six hundred forty-two".