1061565696 has 144 divisors (see below), whose sum is σ = 3155281920. Its totient is φ = 352051200.

The previous prime is 1061565683. The next prime is 1061565733. The reversal of 1061565696 is 6965651601.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×1061565696² = 2253843453847928832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2647096 + ... + 2647496.

It is an arithmetic number, because the mean of its divisors is an integer number (21911680).

Almost surely, 2^1061565696 is an apocalyptic number.

1061565696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1061565696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1577640960).

1061565696 is an abundant number, since it is smaller than the sum of its proper divisors (2093716224).

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

1061565696 is an equidigital number, since it uses as much as digits as its factorization.

1061565696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 1061565696 is about 32581.6773048902. The cubic root of 1061565696 is about 1020.1145892024.

The spelling of 1061565696 in words is "one billion, sixty-one million, five hundred sixty-five thousand, six hundred ninety-six".