168190154201 has 4 divisors (see below), whose sum is σ = 177042267600. Its totient is φ = 159338040804.

The previous prime is 168190154189. The next prime is 168190154219. The reversal of 168190154201 is 102451091861.

It is a happy number.

168190154201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168190154201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168190154281) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4426056671 + ... + 4426056708.

It is an arithmetic number, because the mean of its divisors is an integer number (44260566900).

Almost surely, 2^168190154201 is an apocalyptic number.

It is an amenable number.

168190154201 is a deficient number, since it is larger than the sum of its proper divisors (8852113399).

168190154201 is an equidigital number, since it uses as much as digits as its factorization.

168190154201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8852113398.

The product of its (nonzero) digits is 17280, while the sum is 38.

The spelling of 168190154201 in words is "one hundred sixty-eight billion, one hundred ninety million, one hundred fifty-four thousand, two hundred one".