1066185995544 has 48 divisors (see below), whose sum is σ = 2894788114920. Its totient is φ = 354509049600.

The previous prime is 1066185995491. The next prime is 1066185995591. The reversal of 1066185995544 is 4455995816601.

1066185995544 is a `hidden beast` number, since 1 + 0 + 6 + 6 + 1 + 85 + 9 + 9 + 5 + 544 = 666.

1066185995544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1066185995544² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18435142 + ... + 18492885.

Almost surely, 2^{1066185995544} is an apocalyptic number.

It is an amenable number.

1066185995544 is an abundant number, since it is smaller than the sum of its proper divisors (1828602119376).

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

1066185995544 is a wasteful number, since it uses less digits than its factorization.

1066185995544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36928440 (or 36928433 counting only the distinct ones).

The product of its (nonzero) digits is 46656000, while the sum is 63.

The spelling of 1066185995544 in words is "one trillion, sixty-six billion, one hundred eighty-five million, nine hundred ninety-five thousand, five hundred forty-four".