344878158066 has 128 divisors (see below), whose sum is σ = 762218698752. Its totient is φ = 103387200000.

The previous prime is 344878158059. The next prime is 344878158071. The reversal of 344878158066 is 660851878443.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 190434301 + ... + 190436111.

It is an arithmetic number, because the mean of its divisors is an integer number (5954833584).

Almost surely, 2^344878158066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 344878158066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381109349376).

344878158066 is an abundant number, since it is smaller than the sum of its proper divisors (417340540686).

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

344878158066 is a wasteful number, since it uses less digits than its factorization.

344878158066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2288.

The product of its (nonzero) digits is 30965760, while the sum is 60.

The spelling of 344878158066 in words is "three hundred forty-four billion, eight hundred seventy-eight million, one hundred fifty-eight thousand, sixty-six".