165716667066 has 8 divisors (see below), whose sum is σ = 331433334144. Its totient is φ = 55238889020.

The previous prime is 165716667059. The next prime is 165716667073. The reversal of 165716667066 is 660766617561.

It is an interprime number because it is at equal distance from previous prime (165716667059) and next prime (165716667073).

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

165716667066 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 165716666997 and 165716667015.

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, 13809722250 + ... + 13809722261.

It is an arithmetic number, because the mean of its divisors is an integer number (41429166768).

Almost surely, 2^165716667066 is an apocalyptic number.

165716667066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165716667066 is a wasteful number, since it uses less digits than its factorization.

165716667066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27619444516.

The product of its (nonzero) digits is 11430720, while the sum is 57.

The spelling of 165716667066 in words is "one hundred sixty-five billion, seven hundred sixteen million, six hundred sixty-seven thousand, sixty-six".