163673737442 has 16 divisors (see below), whose sum is σ = 264449014272. Its totient is φ = 75753622560.

The previous prime is 163673737309. The next prime is 163673737463. The reversal of 163673737442 is 244737376361.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57387683 + ... + 57390534.

It is an arithmetic number, because the mean of its divisors is an integer number (16528063392).

Almost surely, 2^163673737442 is an apocalyptic number.

163673737442 is a deficient number, since it is larger than the sum of its proper divisors (100775276830).

163673737442 is a wasteful number, since it uses less digits than its factorization.

163673737442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114778273.

The product of its digits is 10668672, while the sum is 53.

The spelling of 163673737442 in words is "one hundred sixty-three billion, six hundred seventy-three million, seven hundred thirty-seven thousand, four hundred forty-two".