1701167561 has 4 divisors (see below), whose sum is σ = 1775131392. Its totient is φ = 1627203732.

The previous prime is 1701167471. The next prime is 1701167569. The reversal of 1701167561 is 1657611071.

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 a de Polignac number, because none of the positive numbers 2^k-1701167561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1701167569) 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, 36981881 + ... + 36981926.

It is an arithmetic number, because the mean of its divisors is an integer number (443782848).

Almost surely, 2^1701167561 is an apocalyptic number.

It is an amenable number.

1701167561 is a deficient number, since it is larger than the sum of its proper divisors (73963831).

1701167561 is an equidigital number, since it uses as much as digits as its factorization.

1701167561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73963830.

The product of its (nonzero) digits is 8820, while the sum is 35.

The square root of 1701167561 is about 41245.2125827956. The cubic root of 1701167561 is about 1193.7563577195.

The spelling of 1701167561 in words is "one billion, seven hundred one million, one hundred sixty-seven thousand, five hundred sixty-one".