117066378 has 64 divisors (see below), whose sum is σ = 281014272. Its totient is φ = 32038080.

The previous prime is 117066371. The next prime is 117066407. The reversal of 117066378 is 873660711.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117066371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38875 + ... + 41777.

It is an arithmetic number, because the mean of its divisors is an integer number (4390848).

Almost surely, 2^117066378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117066378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140507136).

117066378 is an abundant number, since it is smaller than the sum of its proper divisors (163947894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117066378 is a wasteful number, since it uses less digits than its factorization.

117066378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 117066378 is about 10819.7217154602. The cubic root of 117066378 is about 489.1898009033.

The spelling of 117066378 in words is "one hundred seventeen million, sixty-six thousand, three hundred seventy-eight".