16655661061 has 8 divisors (see below), whose sum is σ = 17941803264. Its totient is φ = 15370224240.

The previous prime is 16655661023. The next prime is 16655661067. The reversal of 16655661061 is 16016655661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16655661061 is a prime.

It is a super-2 number, since 2×16655661061² (a number of 21 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 = 16655660999 and 16655661017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16655661067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126781 + ... + 222226.

It is an arithmetic number, because the mean of its divisors is an integer number (2242725408).

Almost surely, 2^16655661061 is an apocalyptic number.

It is an amenable number.

16655661061 is a deficient number, since it is larger than the sum of its proper divisors (1286142203).

16655661061 is a wasteful number, since it uses less digits than its factorization.

16655661061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352691.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 16655661061 in words is "sixteen billion, six hundred fifty-five million, six hundred sixty-one thousand, sixty-one".