16706666660761 has 8 divisors (see below), whose sum is σ = 20829090901824. Its totient is φ = 13018181813520.

The previous prime is 16706666660743. The next prime is 16706666660777.

16706666660761 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 16706666660761 - 2¹¹ = 16706666658713 is a prime.

It is a super-2 number, since 2×16706666660761² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16706666660693 and 16706666660702.

It is not an unprimeable number, because it can be changed into a prime (16706666660731) 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, 108484848370 + ... + 108484848523.

It is an arithmetic number, because the mean of its divisors is an integer number (2603636362728).

Almost surely, 2^{16706666660761} is an apocalyptic number.

16706666660761 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16706666660761 is a deficient number, since it is larger than the sum of its proper divisors (4122424241063).

16706666660761 is a wasteful number, since it uses less digits than its factorization.

16706666660761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216969696911.

The product of its (nonzero) digits is 82301184, while the sum is 64.

The spelling of 16706666660761 in words is "sixteen trillion, seven hundred six billion, six hundred sixty-six million, six hundred sixty thousand, seven hundred sixty-one".