166786652 has 6 divisors (see below), whose sum is σ = 291876648. Its totient is φ = 83393324.

The previous prime is 166786619. The next prime is 166786657. The reversal of 166786652 is 256687661.

It is a junction number, because it is equal to n+sod(n) for n = 166786597 and 166786606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166786657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20848328 + ... + 20848335.

It is an arithmetic number, because the mean of its divisors is an integer number (48646108).

Almost surely, 2^166786652 is an apocalyptic number.

It is an amenable number.

166786652 is a deficient number, since it is larger than the sum of its proper divisors (125089996).

166786652 is a wasteful number, since it uses less digits than its factorization.

166786652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41696667 (or 41696665 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 166786652 is about 12914.5906632769. The cubic root of 166786652 is about 550.4532374182.

The spelling of 166786652 in words is "one hundred sixty-six million, seven hundred eighty-six thousand, six hundred fifty-two".