166053736 has 8 divisors (see below), whose sum is σ = 311350770. Its totient is φ = 83026864.

The previous prime is 166053733. The next prime is 166053737. The reversal of 166053736 is 637350661.

It can be written as a sum of positive squares in only one way, i.e., 93973636 + 72080100 = 9694^2 + 8490^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 166053695 and 166053704.

It is not an unprimeable number, because it can be changed into a prime (166053733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10378351 + ... + 10378366.

Almost surely, 2^166053736 is an apocalyptic number.

It is an amenable number.

166053736 is a deficient number, since it is larger than the sum of its proper divisors (145297034).

166053736 is a wasteful number, since it uses less digits than its factorization.

166053736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20756723 (or 20756719 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 166053736 is about 12886.1839192214. The cubic root of 166053736 is about 549.6457619779.

The spelling of 166053736 in words is "one hundred sixty-six million, fifty-three thousand, seven hundred thirty-six".