1560000661103 has 2 divisors, whose sum is σ = 1560000661104. Its totient is φ = 1560000661102.

The previous prime is 1560000661091. The next prime is 1560000661159. The reversal of 1560000661103 is 3011660000651.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1560000661103 - 2¹⁸ = 1560000398959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1560000661003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 780000330551 + 780000330552.

It is an arithmetic number, because the mean of its divisors is an integer number (780000330552).

Almost surely, 2^{1560000661103} is an apocalyptic number.

1560000661103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1560000661103 is an equidigital number, since it uses as much as digits as its factorization.

1560000661103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

Adding to 1560000661103 its reverse (3011660000651), we get a palindrome (4571660661754).

The spelling of 1560000661103 in words is "one trillion, five hundred sixty billion, six hundred sixty-one thousand, one hundred three".