1601607795191 has 4 divisors (see below), whose sum is σ = 1601671636992. Its totient is φ = 1601543953392.

The previous prime is 1601607795169. The next prime is 1601607795211. The reversal of 1601607795191 is 1915977061061.

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 1601607795191 - 2¹⁰ = 1601607794167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601607795101) 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, 31883255 + ... + 31933448.

It is an arithmetic number, because the mean of its divisors is an integer number (400417909248).

Almost surely, 2^{1601607795191} is an apocalyptic number.

1601607795191 is a deficient number, since it is larger than the sum of its proper divisors (63841801).

1601607795191 is an equidigital number, since it uses as much as digits as its factorization.

1601607795191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63841800.

The product of its (nonzero) digits is 714420, while the sum is 53.

The spelling of 1601607795191 in words is "one trillion, six hundred one billion, six hundred seven million, seven hundred ninety-five thousand, one hundred ninety-one".