1067056561 has 16 divisors (see below), whose sum is σ = 1142152704. Its totient is φ = 993394944.

The previous prime is 1067056559. The next prime is 1067056583. The reversal of 1067056561 is 1656507601.

It is a cyclic number.

It is not a de Polignac number, because 1067056561 - 2¹ = 1067056559 is a prime.

It is a super-2 number, since 2×1067056561² = 2277219408746293442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1067056561.

It is not an unprimeable number, because it can be changed into a prime (1067056541) 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, 655030 + ... + 656656.

It is an arithmetic number, because the mean of its divisors is an integer number (71384544).

Almost surely, 2^1067056561 is an apocalyptic number.

It is an amenable number.

1067056561 is a deficient number, since it is larger than the sum of its proper divisors (75096143).

1067056561 is a wasteful number, since it uses less digits than its factorization.

1067056561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 1067056561 is about 32665.8317053156. The cubic root of 1067056561 is about 1021.8703862367.

The spelling of 1067056561 in words is "one billion, sixty-seven million, fifty-six thousand, five hundred sixty-one".