1560656550 has 96 divisors (see below), whose sum is σ = 3981843360. Its totient is φ = 404352000.

The previous prime is 1560656543. The next prime is 1560656551. The reversal of 1560656550 is 556560651.

It is a junction number, because it is equal to n+sod(n) for n = 1560656499 and 1560656508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1560656551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 865650 + ... + 867450.

It is an arithmetic number, because the mean of its divisors is an integer number (41477535).

Almost surely, 2^1560656550 is an apocalyptic number.

1560656550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1560656550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1990921680).

1560656550 is an abundant number, since it is smaller than the sum of its proper divisors (2421186810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1560656550 is a wasteful number, since it uses less digits than its factorization.

1560656550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978 (or 1973 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 1560656550 is about 39505.1458673424. The cubic root of 1560656550 is about 1159.9406801810.

The spelling of 1560656550 in words is "one billion, five hundred sixty million, six hundred fifty-six thousand, five hundred fifty".