1066155860013 has 8 divisors (see below), whose sum is σ = 1505161214208. Its totient is φ = 668960539584.

The previous prime is 1066155859987. The next prime is 1066155860051. The reversal of 1066155860013 is 3100685516601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1066155860013 - 2¹⁸ = 1066155597869 is a prime.

It is a super-3 number, since 3×1066155860013³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066155865013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10452508381 + ... + 10452508482.

It is an arithmetic number, because the mean of its divisors is an integer number (188145151776).

Almost surely, 2^{1066155860013} is an apocalyptic number.

It is an amenable number.

1066155860013 is a deficient number, since it is larger than the sum of its proper divisors (439005354195).

1066155860013 is a wasteful number, since it uses less digits than its factorization.

1066155860013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20905016883.

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 1066155860013 in words is "one trillion, sixty-six billion, one hundred fifty-five million, eight hundred sixty thousand, thirteen".