1066855523373 has 24 divisors (see below), whose sum is σ = 1544084575488. Its totient is φ = 709820318592.

The previous prime is 1066855523339. The next prime is 1066855523401. The reversal of 1066855523373 is 3733255586601.

1066855523373 is a `hidden beast` number, since 1 + 0 + 6 + 6 + 85 + 5 + 523 + 37 + 3 = 666.

1066855523373 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1066855523373 - 2²⁹ = 1066318652461 is a prime.

It is a super-2 number, since 2×1066855523373² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066855523303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19503940 + ... + 19558562.

It is an arithmetic number, because the mean of its divisors is an integer number (64336857312).

Almost surely, 2^{1066855523373} is an apocalyptic number.

It is an amenable number.

1066855523373 is a deficient number, since it is larger than the sum of its proper divisors (477229052115).

1066855523373 is a wasteful number, since it uses less digits than its factorization.

1066855523373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58913 (or 58910 counting only the distinct ones).

The product of its (nonzero) digits is 13608000, while the sum is 54.

The spelling of 1066855523373 in words is "one trillion, sixty-six billion, eight hundred fifty-five million, five hundred twenty-three thousand, three hundred seventy-three".