168456349004 has 18 divisors (see below), whose sum is σ = 299806418940. Its totient is φ = 82797479152.

The previous prime is 168456348979. The next prime is 168456349007. The reversal of 168456349004 is 400943654861.

It is not an unprimeable number, because it can be changed into a prime (168456349007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6291854 + ... + 6318570.

Almost surely, 2^168456349004 is an apocalyptic number.

It is an amenable number.

168456349004 is a deficient number, since it is larger than the sum of its proper divisors (131350069936).

168456349004 is an frugal number, since it uses more digits than its factorization.

168456349004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53497 (or 26778 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 168456349004 in words is "one hundred sixty-eight billion, four hundred fifty-six million, three hundred forty-nine thousand, four".