1001566560 has 96 divisors (see below), whose sum is σ = 3340546272. Its totient is φ = 251371520.

The previous prime is 1001566549. The next prime is 1001566567. The reversal of 1001566560 is 656651001.

1001566560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1001566560² = 2006271148220467200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001566567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53211 + ... + 69530.

It is an arithmetic number, because the mean of its divisors is an integer number (34797357).

Almost surely, 2^1001566560 is an apocalyptic number.

1001566560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001566560 is an abundant number, since it is smaller than the sum of its proper divisors (2338979712).

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

1001566560 is a wasteful number, since it uses less digits than its factorization.

1001566560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122776 (or 122768 counting only the distinct ones).

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

The square root of 1001566560 is about 31647.5363970089. The cubic root of 1001566560 is about 1000.5219142248.

The spelling of 1001566560 in words is "one billion, one million, five hundred sixty-six thousand, five hundred sixty".