23016646666 has 16 divisors (see below), whose sum is σ = 38087585928. Its totient is φ = 10363968000.

The previous prime is 23016646661. The next prime is 23016646693. The reversal of 23016646666 is 66664661032.

It can be written as a sum of positive squares in 4 ways, for example, as 17115180625 + 5901466041 = 130825^2 + 76821^2 .

It is not an unprimeable number, because it can be changed into a prime (23016646661) 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, 10794735 + ... + 10796866.

Almost surely, 2^23016646666 is an apocalyptic number.

23016646666 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

23016646666 is a deficient number, since it is larger than the sum of its proper divisors (15070939262).

23016646666 is a wasteful number, since it uses less digits than its factorization.

23016646666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21591657.

The product of its (nonzero) digits is 1119744, while the sum is 46.

The spelling of 23016646666 in words is "twenty-three billion, sixteen million, six hundred forty-six thousand, six hundred sixty-six".