1056128344305 has 16 divisors (see below), whose sum is σ = 1703110907904. Its totient is φ = 558833264640.

The previous prime is 1056128344283. The next prime is 1056128344309. The reversal of 1056128344305 is 5034438216501.

It is not a de Polignac number, because 1056128344305 - 2¹⁸ = 1056128082161 is a prime.

It is a super-2 number, since 2×1056128344305² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056128344309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277197136 + ... + 277200945.

It is an arithmetic number, because the mean of its divisors is an integer number (106444431744).

Almost surely, 2^{1056128344305} is an apocalyptic number.

1056128344305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1056128344305 is a deficient number, since it is larger than the sum of its proper divisors (646982563599).

1056128344305 is a wasteful number, since it uses less digits than its factorization.

1056128344305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554398216.

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 1056128344305 in words is "one trillion, fifty-six billion, one hundred twenty-eight million, three hundred forty-four thousand, three hundred five".