16660606610 has 16 divisors (see below), whose sum is σ = 29993069016. Its totient is φ = 6663358848.

The previous prime is 16660606609. The next prime is 16660606621. The reversal of 16660606610 is 1660606661.

It can be written as a sum of positive squares in 4 ways, for example, as 5579044249 + 11081562361 = 74693^2 + 105269^2 .

It is a super-2 number, since 2×16660606610² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28397 + ... + 184736.

Almost surely, 2^16660606610 is an apocalyptic number.

16660606610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16660606610 is a deficient number, since it is larger than the sum of its proper divisors (13332462406).

16660606610 is a wasteful number, since it uses less digits than its factorization.

16660606610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220957.

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 16660606610 in words is "sixteen billion, six hundred sixty million, six hundred six thousand, six hundred ten".