320040206147 has 4 divisors (see below), whose sum is σ = 320185219776. Its totient is φ = 319895192520.

The previous prime is 320040206111. The next prime is 320040206153. The reversal of 320040206147 is 741602040023.

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 320040206147 - 2¹² = 320040202051 is a prime.

It is a super-2 number, since 2×320040206147² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320040236147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72503504 + ... + 72507917.

It is an arithmetic number, because the mean of its divisors is an integer number (80046304944).

Almost surely, 2^320040206147 is an apocalyptic number.

320040206147 is a deficient number, since it is larger than the sum of its proper divisors (145013629).

320040206147 is a wasteful number, since it uses less digits than its factorization.

320040206147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145013628.

The product of its (nonzero) digits is 8064, while the sum is 29.

The spelling of 320040206147 in words is "three hundred twenty billion, forty million, two hundred six thousand, one hundred forty-seven".