1560245561 has 8 divisors (see below), whose sum is σ = 1803173760. Its totient is φ = 1322326368.

The previous prime is 1560245551. The next prime is 1560245569. The reversal of 1560245561 is 1655420651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1560245561 - 2¹⁸ = 1559983417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1560245569) 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, 1251581 + ... + 1252826.

It is an arithmetic number, because the mean of its divisors is an integer number (225396720).

Almost surely, 2^1560245561 is an apocalyptic number.

It is an amenable number.

1560245561 is a deficient number, since it is larger than the sum of its proper divisors (242928199).

1560245561 is an equidigital number, since it uses as much as digits as its factorization.

1560245561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2504503.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 1560245561 is about 39499.9438100866. The cubic root of 1560245561 is about 1159.8388502356.

The spelling of 1560245561 in words is "one billion, five hundred sixty million, two hundred forty-five thousand, five hundred sixty-one".