1560060661 has 2 divisors, whose sum is σ = 1560060662. Its totient is φ = 1560060660.

The previous prime is 1560060617. The next prime is 1560060673. The reversal of 1560060661 is 1660600651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1152263025 + 407797636 = 33945^2 + 20194^2 .

It is a cyclic number.

It is not a de Polignac number, because 1560060661 - 2⁹ = 1560060149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1560069661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 780030330 + 780030331.

It is an arithmetic number, because the mean of its divisors is an integer number (780030331).

Almost surely, 2^1560060661 is an apocalyptic number.

It is an amenable number.

1560060661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1560060661 is an equidigital number, since it uses as much as digits as its factorization.

1560060661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1560060661 is about 39497.6032310823. The cubic root of 1560060661 is about 1159.7930320899.

The spelling of 1560060661 in words is "one billion, five hundred sixty million, sixty thousand, six hundred sixty-one".