20191168401 has 8 divisors (see below), whose sum is σ = 28092060480. Its totient is φ = 12875527632.

The previous prime is 20191168357. The next prime is 20191168409. The reversal of 20191168401 is 10486119102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20191168401 - 2⁶ = 20191168337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20191168409) 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 7 ways as a sum of consecutive naturals, for example, 146312746 + ... + 146312883.

It is an arithmetic number, because the mean of its divisors is an integer number (3511507560).

Almost surely, 2^20191168401 is an apocalyptic number.

It is an amenable number.

20191168401 is a deficient number, since it is larger than the sum of its proper divisors (7900892079).

20191168401 is a wasteful number, since it uses less digits than its factorization.

20191168401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292625655.

The product of its (nonzero) digits is 3456, while the sum is 33.

The spelling of 20191168401 in words is "twenty billion, one hundred ninety-one million, one hundred sixty-eight thousand, four hundred one".