166703668702 has 16 divisors (see below), whose sum is σ = 250676991360. Its totient is φ = 83144906712.

The previous prime is 166703668679. The next prime is 166703668717. The reversal of 166703668702 is 207866307661.

It is a happy number.

It is a super-2 number, since 2×166703668702² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166703668702.

It is a congruent number.

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, 1381903 + ... + 1497685.

It is an arithmetic number, because the mean of its divisors is an integer number (15667311960).

Almost surely, 2^166703668702 is an apocalyptic number.

166703668702 is a deficient number, since it is larger than the sum of its proper divisors (83973322658).

166703668702 is a wasteful number, since it uses less digits than its factorization.

166703668702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117567.

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 166703668702 in words is "one hundred sixty-six billion, seven hundred three million, six hundred sixty-eight thousand, seven hundred two".