1560661005 has 8 divisors (see below), whose sum is σ = 2497057632. Its totient is φ = 832352528.

The previous prime is 1560661001. The next prime is 1560661031. The reversal of 1560661005 is 5001660651.

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 1560661005 - 2² = 1560661001 is a prime.

It is a super-2 number, since 2×1560661005² = 4871325545055220050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1560661001) 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, 52022019 + ... + 52022048.

It is an arithmetic number, because the mean of its divisors is an integer number (312132204).

Almost surely, 2^1560661005 is an apocalyptic number.

1560661005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1560661005 is a deficient number, since it is larger than the sum of its proper divisors (936396627).

1560661005 is a wasteful number, since it uses less digits than its factorization.

1560661005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104044075.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1560661005 is about 39505.2022523617. The cubic root of 1560661005 is about 1159.9417838897.

The spelling of 1560661005 in words is "one billion, five hundred sixty million, six hundred sixty-one thousand, five".