117066845 has 16 divisors (see below), whose sum is σ = 169993728. Its totient is φ = 75552000.

The previous prime is 117066821. The next prime is 117066863. The reversal of 117066845 is 548660711.

It is not a de Polignac number, because 117066845 - 2²⁰ = 116018269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117066799 and 117066808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97781 + ... + 98970.

It is an arithmetic number, because the mean of its divisors is an integer number (10624608).

Almost surely, 2^117066845 is an apocalyptic number.

It is an amenable number.

117066845 is a deficient number, since it is larger than the sum of its proper divisors (52926883).

117066845 is a wasteful number, since it uses less digits than its factorization.

117066845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196780.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 117066845 is about 10819.7432964003. The cubic root of 117066845 is about 489.1904513928.

The spelling of 117066845 in words is "one hundred seventeen million, sixty-six thousand, eight hundred forty-five".