168378164616 has 64 divisors (see below), whose sum is σ = 443742508800. Its totient is φ = 53095003200.

The previous prime is 168378164593. The next prime is 168378164671. The reversal of 168378164616 is 616461873861.

It is a Harshad number since it is a multiple of its sum of digits (57).

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, 47911 + ... + 582281.

It is an arithmetic number, because the mean of its divisors is an integer number (6933476700).

Almost surely, 2^168378164616 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 168378164616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221871254400).

168378164616 is an abundant number, since it is smaller than the sum of its proper divisors (275364344184).

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

168378164616 is a wasteful number, since it uses less digits than its factorization.

168378164616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535090 (or 535086 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 57.

The spelling of 168378164616 in words is "one hundred sixty-eight billion, three hundred seventy-eight million, one hundred sixty-four thousand, six hundred sixteen".