163078149366 has 80 divisors (see below), whose sum is σ = 400055336208. Its totient is φ = 49241606400.

The previous prime is 163078149359. The next prime is 163078149371. The reversal of 163078149366 is 663941870361.

It is a happy number.

163078149366 is a `hidden beast` number, since 16 + 3 + 0 + 7 + 81 + 493 + 66 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 337906 + ... + 663578.

Almost surely, 2^163078149366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163078149366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200027668104).

163078149366 is an abundant number, since it is smaller than the sum of its proper divisors (236977186842).

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

163078149366 is a wasteful number, since it uses less digits than its factorization.

163078149366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325979 (or 325970 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 163078149366 in words is "one hundred sixty-three billion, seventy-eight million, one hundred forty-nine thousand, three hundred sixty-six".