168190152425 has 12 divisors (see below), whose sum is σ = 208614796236. Its totient is φ = 134514052800.

The previous prime is 168190152401. The next prime is 168190152467. The reversal of 168190152425 is 524251091861.

168190152425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 42503594896 + 125686557529 = 206164^2 + 354523^2 .

It is not a de Polignac number, because 168190152425 - 2²² = 168185958121 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 861434 + ... + 1038483.

It is an arithmetic number, because the mean of its divisors is an integer number (17384566353).

Almost surely, 2^168190152425 is an apocalyptic number.

It is an amenable number.

168190152425 is a deficient number, since it is larger than the sum of its proper divisors (40424643811).

168190152425 is a wasteful number, since it uses less digits than its factorization.

168190152425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903468 (or 1903463 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 44.

The spelling of 168190152425 in words is "one hundred sixty-eight billion, one hundred ninety million, one hundred fifty-two thousand, four hundred twenty-five".