168612650148291 has 4 divisors (see below), whose sum is σ = 224816866864392. Its totient is φ = 112408433432192.

The previous prime is 168612650148259. The next prime is 168612650148343. The reversal of 168612650148291 is 192841056216861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 168612650148291 - 2⁵ = 168612650148259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (168612650148251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28102108358046 + ... + 28102108358051.

It is an arithmetic number, because the mean of its divisors is an integer number (56204216716098).

Almost surely, 2^{168612650148291} is an apocalyptic number.

168612650148291 is a deficient number, since it is larger than the sum of its proper divisors (56204216716101).

168612650148291 is an equidigital number, since it uses as much as digits as its factorization.

168612650148291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56204216716100.

The product of its (nonzero) digits is 9953280, while the sum is 60.

The spelling of 168612650148291 in words is "one hundred sixty-eight trillion, six hundred twelve billion, six hundred fifty million, one hundred forty-eight thousand, two hundred ninety-one".