166112825 has 24 divisors (see below), whose sum is σ = 209891328. Its totient is φ = 130394880.

The previous prime is 166112819. The next prime is 166112833. The reversal of 166112825 is 528211661.

It is a de Polignac number, because none of the positive numbers 2^k-166112825 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 166112791 and 166112800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 358544 + ... + 359006.

It is an arithmetic number, because the mean of its divisors is an integer number (8745472).

Almost surely, 2^166112825 is an apocalyptic number.

It is an amenable number.

166112825 is a deficient number, since it is larger than the sum of its proper divisors (43778503).

166112825 is a wasteful number, since it uses less digits than its factorization.

166112825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 708 counting only the distinct ones).

The product of its digits is 5760, while the sum is 32.

The square root of 166112825 is about 12888.4764421556. The cubic root of 166112825 is about 549.7109500461.

The spelling of 166112825 in words is "one hundred sixty-six million, one hundred twelve thousand, eight hundred twenty-five".