1700065561 has 4 divisors (see below), whose sum is σ = 1713452032. Its totient is φ = 1686679092.

The previous prime is 1700065559. The next prime is 1700065583. The reversal of 1700065561 is 1655600071.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1700065561 - 2¹ = 1700065559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1700066561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6693045 + ... + 6693298.

It is an arithmetic number, because the mean of its divisors is an integer number (428363008).

Almost surely, 2^1700065561 is an apocalyptic number.

It is an amenable number.

1700065561 is a deficient number, since it is larger than the sum of its proper divisors (13386471).

1700065561 is a wasteful number, since it uses less digits than its factorization.

1700065561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13386470.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 1700065561 is about 41231.8512924171. The cubic root of 1700065561 is about 1193.4985340736.

The spelling of 1700065561 in words is "one billion, seven hundred million, sixty-five thousand, five hundred sixty-one".