1055785075799 has 4 divisors (see below), whose sum is σ = 1058095328064. Its totient is φ = 1053474823536.

The previous prime is 1055785075789. The next prime is 1055785075801. The reversal of 1055785075799 is 9975705875501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1055785075799 - 2¹⁶ = 1055785010263 is a prime.

It is a super-2 number, since 2×1055785075799² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055785075789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1155125447 + ... + 1155126360.

It is an arithmetic number, because the mean of its divisors is an integer number (264523832016).

Almost surely, 2^{1055785075799} is an apocalyptic number.

1055785075799 is a deficient number, since it is larger than the sum of its proper divisors (2310252265).

1055785075799 is an equidigital number, since it uses as much as digits as its factorization.

1055785075799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310252264.

The product of its (nonzero) digits is 138915000, while the sum is 68.

The spelling of 1055785075799 in words is "one trillion, fifty-five billion, seven hundred eighty-five million, seventy-five thousand, seven hundred ninety-nine".