1565988960 has 48 divisors (see below), whose sum is σ = 4932866736. Its totient is φ = 417596928.

The previous prime is 1565988959. The next prime is 1565988967. The reversal of 1565988960 is 698895651.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 1565988960.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1565988967) 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, 1630759 + ... + 1631718.

It is an arithmetic number, because the mean of its divisors is an integer number (102768057).

Almost surely, 2^1565988960 is an apocalyptic number.

1565988960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1565988960 is an abundant number, since it is smaller than the sum of its proper divisors (3366877776).

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

1565988960 is a wasteful number, since it uses less digits than its factorization.

1565988960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3262495 (or 3262487 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 57.

The square root of 1565988960 is about 39572.5783845329. The cubic root of 1565988960 is about 1161.2602632880.

The spelling of 1565988960 in words is "one billion, five hundred sixty-five million, nine hundred eighty-eight thousand, nine hundred sixty".