665147226383 has 4 divisors (see below), whose sum is σ = 700154975160. Its totient is φ = 630139477608.

The previous prime is 665147226379. The next prime is 665147226427. The reversal of 665147226383 is 383622741566.

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 665147226383 - 2² = 665147226379 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 (665147226313) 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, 17503874360 + ... + 17503874397.

It is an arithmetic number, because the mean of its divisors is an integer number (175038743790).

Almost surely, 2^665147226383 is an apocalyptic number.

665147226383 is a deficient number, since it is larger than the sum of its proper divisors (35007748777).

665147226383 is a wasteful number, since it uses less digits than its factorization.

665147226383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35007748776.

The product of its digits is 8709120, while the sum is 53.

The spelling of 665147226383 in words is "six hundred sixty-five billion, one hundred forty-seven million, two hundred twenty-six thousand, three hundred eighty-three".