1056105061056 has 84 divisors (see below), whose sum is σ = 3091541667552. Its totient is φ = 344544904704.

The previous prime is 1056105061049. The next prime is 1056105061061. The reversal of 1056105061056 is 6501605016501.

It is a super-2 number, since 2×1056105061056² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1056105061056.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19478415 + ... + 19532558.

Almost surely, 2^{1056105061056} is an apocalyptic number.

1056105061056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1056105061056 is an abundant number, since it is smaller than the sum of its proper divisors (2035436606496).

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

1056105061056 is a wasteful number, since it uses less digits than its factorization.

1056105061056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39011038 (or 39011025 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 1056105061056 in words is "one trillion, fifty-six billion, one hundred five million, sixty-one thousand, fifty-six".