1668370170330 has 128 divisors (see below), whose sum is σ = 4477282698240. Its totient is φ = 442072143360.

The previous prime is 1668370170253. The next prime is 1668370170331. The reversal of 1668370170330 is 330710738661.

It is a happy number.

1668370170330 is a `hidden beast` number, since 1 + 6 + 6 + 83 + 70 + 170 + 330 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1668370170331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 89346895 + ... + 89365565.

It is an arithmetic number, because the mean of its divisors is an integer number (34978771080).

Almost surely, 2^{1668370170330} is an apocalyptic number.

1668370170330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1668370170330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2238641349120).

1668370170330 is an abundant number, since it is smaller than the sum of its proper divisors (2808912527910).

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

1668370170330 is a wasteful number, since it uses less digits than its factorization.

1668370170330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20773 (or 20767 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 1668370170330 in words is "one trillion, six hundred sixty-eight billion, three hundred seventy million, one hundred seventy thousand, three hundred thirty".