368665668 has 120 divisors (see below), whose sum is σ = 1122593472. Its totient is φ = 103311936.

The previous prime is 368665663. The next prime is 368665681. The reversal of 368665668 is 866566863.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (368665663) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 118671 + ... + 121737.

Almost surely, 2^368665668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 368665668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (561296736).

368665668 is an abundant number, since it is smaller than the sum of its proper divisors (753927804).

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

368665668 is a wasteful number, since it uses less digits than its factorization.

368665668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143 (or 3132 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The square root of 368665668 is about 19200.6684258648. The cubic root of 368665668 is about 717.0414009462.

The spelling of 368665668 in words is "three hundred sixty-eight million, six hundred sixty-five thousand, six hundred sixty-eight".