10666156515161 has 8 divisors (see below), whose sum is σ = 12190838289600. Its totient is φ = 9141711023088.

The previous prime is 10666156515137. The next prime is 10666156515191. The reversal of 10666156515161 is 16151565166601.

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

It is a de Polignac number, because none of the positive numbers 2^k-10666156515161 is a prime.

It is a super-2 number, since 2×10666156515161² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10666156515191) 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, 58973846 + ... + 59154431.

It is an arithmetic number, because the mean of its divisors is an integer number (1523854786200).

Almost surely, 2^{10666156515161} is an apocalyptic number.

It is an amenable number.

10666156515161 is a deficient number, since it is larger than the sum of its proper divisors (1524681774439).

10666156515161 is a wasteful number, since it uses less digits than its factorization.

10666156515161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118141183.

The product of its (nonzero) digits is 972000, while the sum is 50.

The spelling of 10666156515161 in words is "ten trillion, six hundred sixty-six billion, one hundred fifty-six million, five hundred fifteen thousand, one hundred sixty-one".