1066218233445 has 24 divisors (see below), whose sum is σ = 1848919877376. Its totient is φ = 568401025248.

The previous prime is 1066218233429. The next prime is 1066218233467. The reversal of 1066218233445 is 5443328126601.

1066218233445 is a `hidden beast` number, since 1 + 0 + 66 + 218 + 2 + 334 + 45 = 666.

It is not a de Polignac number, because 1066218233445 - 2⁴ = 1066218233429 is a prime.

It is a super-2 number, since 2×1066218233445² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1066218233445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5077177 + ... + 5283006.

It is an arithmetic number, because the mean of its divisors is an integer number (77038328224).

Almost surely, 2^{1066218233445} is an apocalyptic number.

1066218233445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1066218233445 is a deficient number, since it is larger than the sum of its proper divisors (782701643931).

1066218233445 is a wasteful number, since it uses less digits than its factorization.

1066218233445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10362481 (or 10362478 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 1066218233445 in words is "one trillion, sixty-six billion, two hundred eighteen million, two hundred thirty-three thousand, four hundred forty-five".