172662666337766 has 16 divisors (see below), whose sum is σ = 282622723242048. Its totient is φ = 78459748295400.

The previous prime is 172662666337751. The next prime is 172662666337783. The reversal of 172662666337766 is 667733666266271.

It is a junction number, because it is equal to n+sod(n) for n = 172662666337693 and 172662666337702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1164017060 + ... + 1164165383.

It is an arithmetic number, because the mean of its divisors is an integer number (17663920202628).

Almost surely, 2^{172662666337766} is an apocalyptic number.

172662666337766 is a deficient number, since it is larger than the sum of its proper divisors (109960056904282).

172662666337766 is a wasteful number, since it uses less digits than its factorization.

172662666337766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2328185827.

The product of its digits is 3456649728, while the sum is 74.

The spelling of 172662666337766 in words is "one hundred seventy-two trillion, six hundred sixty-two billion, six hundred sixty-six million, three hundred thirty-seven thousand, seven hundred sixty-six".