1056173659842 has 32 divisors (see below), whose sum is σ = 2414586835584. Its totient is φ = 301704451200.

The previous prime is 1056173659837. The next prime is 1056173659843. The reversal of 1056173659842 is 2489563716501.

It is a super-2 number, since 2×1056173659842² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1056173659843) 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, 2261209 + ... + 2688012.

It is an arithmetic number, because the mean of its divisors is an integer number (75455838612).

It is a 1-persistent number, because it is pandigital, but 2⋅1056173659842 = 2112347319684 is not.

Almost surely, 2^{1056173659842} is an apocalyptic number.

1056173659842 is an abundant number, since it is smaller than the sum of its proper divisors (1358413175742).

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

1056173659842 is a wasteful number, since it uses less digits than its factorization.

1056173659842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4954314.

The product of its (nonzero) digits is 10886400, while the sum is 57.

The spelling of 1056173659842 in words is "one trillion, fifty-six billion, one hundred seventy-three million, six hundred fifty-nine thousand, eight hundred forty-two".