168941252672 has 14 divisors (see below), whose sum is σ = 335242798398. Its totient is φ = 84470626304.

The previous prime is 168941252659. The next prime is 168941252681. The reversal of 168941252672 is 276252149861.

It can be written as a sum of positive squares in only one way, i.e., 149224599616 + 19716653056 = 386296^2 + 140416^2 .

It is a super-2 number, since 2×168941252672² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319853473 + ... + 1319853600.

Almost surely, 2^168941252672 is an apocalyptic number.

It is an amenable number.

168941252672 is a deficient number, since it is larger than the sum of its proper divisors (166301545726).

168941252672 is an equidigital number, since it uses as much as digits as its factorization.

168941252672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639707085 (or 2639707075 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 53.

The spelling of 168941252672 in words is "one hundred sixty-eight billion, nine hundred forty-one million, two hundred fifty-two thousand, six hundred seventy-two".