166869745 has 48 divisors (see below), whose sum is σ = 243744768. Its totient is φ = 109226880.

The previous prime is 166869733. The next prime is 166869793. The reversal of 166869745 is 547968661.

It is not a de Polignac number, because 166869745 - 2⁷ = 166869617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166869692 and 166869701.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 964479 + ... + 964651.

It is an arithmetic number, because the mean of its divisors is an integer number (5078016).

Almost surely, 2^166869745 is an apocalyptic number.

It is an amenable number.

166869745 is a deficient number, since it is larger than the sum of its proper divisors (76875023).

166869745 is a wasteful number, since it uses less digits than its factorization.

166869745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 343 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The square root of 166869745 is about 12917.8072829718. The cubic root of 166869745 is about 550.5446340552.

The spelling of 166869745 in words is "one hundred sixty-six million, eight hundred sixty-nine thousand, seven hundred forty-five".