163343977772 has 12 divisors (see below), whose sum is σ = 285854888256. Its totient is φ = 81671152560.

The previous prime is 163343977757. The next prime is 163343977789. The reversal of 163343977772 is 277779343361.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490322 + ... + 753062.

It is an arithmetic number, because the mean of its divisors is an integer number (23821240688).

Almost surely, 2^163343977772 is an apocalyptic number.

It is an amenable number.

163343977772 is a deficient number, since it is larger than the sum of its proper divisors (122510910484).

163343977772 is a wasteful number, since it uses less digits than its factorization.

163343977772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418168 (or 418166 counting only the distinct ones).

The product of its digits is 28005264, while the sum is 59.

The spelling of 163343977772 in words is "one hundred sixty-three billion, three hundred forty-three million, nine hundred seventy-seven thousand, seven hundred seventy-two".