665362200001 has 4 divisors (see below), whose sum is σ = 665377619904. Its totient is φ = 665346780100.

The previous prime is 665362199977. The next prime is 665362200011. The reversal of 665362200001 is 100002263566.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 665362200001 - 2³⁹ = 115606386113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (665362200011) 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, 7645045 + ... + 7731586.

It is an arithmetic number, because the mean of its divisors is an integer number (166344404976).

Almost surely, 2^665362200001 is an apocalyptic number.

It is an amenable number.

665362200001 is a deficient number, since it is larger than the sum of its proper divisors (15419903).

665362200001 is a wasteful number, since it uses less digits than its factorization.

665362200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15419902.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 665362200001 its reverse (100002263566), we get a palindrome (765364463567).

The spelling of 665362200001 in words is "six hundred sixty-five billion, three hundred sixty-two million, two hundred thousand, one".