166610666510 has 8 divisors (see below), whose sum is σ = 299899199736. Its totient is φ = 66644266600.

The previous prime is 166610666507. The next prime is 166610666527. The reversal of 166610666510 is 15666016661.

166610666510 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×166610666510² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8330533316 + ... + 8330533335.

It is an arithmetic number, because the mean of its divisors is an integer number (37487399967).

Almost surely, 2^166610666510 is an apocalyptic number.

166610666510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166610666510 is a deficient number, since it is larger than the sum of its proper divisors (133288533226).

166610666510 is a wasteful number, since it uses less digits than its factorization.

166610666510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16661066658.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 166610666510 in words is "one hundred sixty-six billion, six hundred ten million, six hundred sixty-six thousand, five hundred ten".