320011072691 has 2 divisors, whose sum is σ = 320011072692. Its totient is φ = 320011072690.

The previous prime is 320011072673. The next prime is 320011072807. The reversal of 320011072691 is 196270110023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320011072691 - 2¹⁴ = 320011056307 is a prime.

It is not a weakly prime, because it can be changed into another prime (320011072391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160005536345 + 160005536346.

It is an arithmetic number, because the mean of its divisors is an integer number (160005536346).

Almost surely, 2^320011072691 is an apocalyptic number.

320011072691 is a deficient number, since it is larger than the sum of its proper divisors (1).

320011072691 is an equidigital number, since it uses as much as digits as its factorization.

320011072691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 32.

The spelling of 320011072691 in words is "three hundred twenty billion, eleven million, seventy-two thousand, six hundred ninety-one".