1056755818820 has 24 divisors (see below), whose sum is σ = 2389893929304. Its totient is φ = 390186763776.

The previous prime is 1056755818819. The next prime is 1056755818823. The reversal of 1056755818820 is 288185576501.

It can be written as a sum of positive squares in 4 ways, for example, as 220456542784 + 836299276036 = 469528^2 + 914494^2 .

It is a super-2 number, since 2×1056755818820² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1056755818823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2032222469 + ... + 2032222988.

It is an arithmetic number, because the mean of its divisors is an integer number (99578913721).

Almost surely, 2^{1056755818820} is an apocalyptic number.

1056755818820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1056755818820 is an abundant number, since it is smaller than the sum of its proper divisors (1333138110484).

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

1056755818820 is a wasteful number, since it uses less digits than its factorization.

1056755818820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4064445479 (or 4064445477 counting only the distinct ones).

The product of its (nonzero) digits is 5376000, while the sum is 56.

The spelling of 1056755818820 in words is "one trillion, fifty-six billion, seven hundred fifty-five million, eight hundred eighteen thousand, eight hundred twenty".