1071061056 has 280 divisors, whose sum is σ = 3573011904. Its totient is φ = 314772480.

The previous prime is 1071061039. The next prime is 1071061091. The reversal of 1071061056 is 6501601701.

1071061056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1071061056² = 2294343571359670272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1549671 + ... + 1550361.

Almost surely, 2^1071061056 is an apocalyptic number.

1071061056 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 1071061056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1786505952).

1071061056 is an abundant number, since it is smaller than the sum of its proper divisors (2501950848).

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

1071061056 is a wasteful number, since it uses less digits than its factorization.

1071061056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 1071061056 is about 32727.0691630033. The cubic root of 1071061056 is about 1023.1470966059.

Adding to 1071061056 its reverse (6501601701), we get a palindrome (7572662757).

The spelling of 1071061056 in words is "one billion, seventy-one million, sixty-one thousand, fifty-six".