163347777340 has 48 divisors (see below), whose sum is σ = 386286372864. Its totient is φ = 57483086400.

The previous prime is 163347777331. The next prime is 163347777343. The reversal of 163347777340 is 43777743361.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163347777343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11968824 + ... + 11982463.

It is an arithmetic number, because the mean of its divisors is an integer number (8047632768).

Almost surely, 2^163347777340 is an apocalyptic number.

163347777340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163347777340 is an abundant number, since it is smaller than the sum of its proper divisors (222938595524).

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

163347777340 is a wasteful number, since it uses less digits than its factorization.

163347777340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23951338 (or 23951336 counting only the distinct ones).

The product of its (nonzero) digits is 6223392, while the sum is 52.

The spelling of 163347777340 in words is "one hundred sixty-three billion, three hundred forty-seven million, seven hundred seventy-seven thousand, three hundred forty".