1066551115005 has 48 divisors (see below), whose sum is σ = 1889181874944. Its totient is φ = 556382659200.

The previous prime is 1066551115001. The next prime is 1066551115013. The reversal of 1066551115005 is 5005111556601.

It is a happy number.

It is not a de Polignac number, because 1066551115005 - 2² = 1066551115001 is a prime.

It is a super-2 number, since 2×1066551115005² (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 (1066551115001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3308230 + ... + 3616280.

It is an arithmetic number, because the mean of its divisors is an integer number (39357955728).

Almost surely, 2^{1066551115005} is an apocalyptic number.

1066551115005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1066551115005 is a deficient number, since it is larger than the sum of its proper divisors (822630759939).

1066551115005 is a wasteful number, since it uses less digits than its factorization.

1066551115005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309746 (or 309743 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 36.

The spelling of 1066551115005 in words is "one trillion, sixty-six billion, five hundred fifty-one million, one hundred fifteen thousand, five".