71653168 has 10 divisors (see below), whose sum is σ = 138828044. Its totient is φ = 35826576.

The previous prime is 71653157. The next prime is 71653189. The reversal of 71653168 is 86135617.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2239146 + ... + 2239177.

Almost surely, 2^71653168 is an apocalyptic number.

It is an amenable number.

71653168 is a deficient number, since it is larger than the sum of its proper divisors (67174876).

71653168 is a wasteful number, since it uses less digits than its factorization.

71653168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4478331 (or 4478325 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 71653168 is about 8464.8194310334. The cubic root of 71653168 is about 415.3476894614.

The spelling of 71653168 in words is "seventy-one million, six hundred fifty-three thousand, one hundred sixty-eight".