1055143553617 has 32 divisors (see below), whose sum is σ = 1190960881920. Its totient is φ = 929783162880.

The previous prime is 1055143553599. The next prime is 1055143553623. The reversal of 1055143553617 is 7163553415501.

It is a cyclic number.

It is not a de Polignac number, because 1055143553617 - 2¹¹ = 1055143551569 is a prime.

It is a super-2 number, since 2×1055143553617² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055143553627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30267117 + ... + 30301957.

It is an arithmetic number, because the mean of its divisors is an integer number (37217527560).

Almost surely, 2^{1055143553617} is an apocalyptic number.

It is an amenable number.

1055143553617 is a deficient number, since it is larger than the sum of its proper divisors (135817328303).

1055143553617 is a wasteful number, since it uses less digits than its factorization.

1055143553617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36793.

The product of its (nonzero) digits is 945000, while the sum is 46.

The spelling of 1055143553617 in words is "one trillion, fifty-five billion, one hundred forty-three million, five hundred fifty-three thousand, six hundred seventeen".