168054685422625 has 8 divisors (see below), whose sum is σ = 209732247407592. Its totient is φ = 134443748338000.

The previous prime is 168054685422601. The next prime is 168054685422671. The reversal of 168054685422625 is 526224586450861.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 50381135533089 + 117673549889536 = 7097967^2 + 10847744^2 .

It is not a de Polignac number, because 168054685422625 - 2¹¹ = 168054685420577 is a prime.

It is a Duffinian number.

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, 672218741566 + ... + 672218741815.

It is an arithmetic number, because the mean of its divisors is an integer number (26216530925949).

Almost surely, 2^{168054685422625} is an apocalyptic number.

It is an amenable number.

168054685422625 is a deficient number, since it is larger than the sum of its proper divisors (41677561984967).

168054685422625 is an equidigital number, since it uses as much as digits as its factorization.

168054685422625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344437483396 (or 1344437483386 counting only the distinct ones).

The product of its (nonzero) digits is 221184000, while the sum is 64.

The spelling of 168054685422625 in words is "one hundred sixty-eight trillion, fifty-four billion, six hundred eighty-five million, four hundred twenty-two thousand, six hundred twenty-five".