665162011125311 has 8 divisors (see below), whose sum is σ = 766170865459200. Its totient is φ = 565649584263288.

The previous prime is 665162011125277. The next prime is 665162011125373. The reversal of 665162011125311 is 113521110261566.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 665162011125311 - 2¹⁸ = 665162010863167 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 (665162011425311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374106867011 + ... + 374106868788.

It is an arithmetic number, because the mean of its divisors is an integer number (95771358182400).

Almost surely, 2^{665162011125311} is an apocalyptic number.

665162011125311 is a deficient number, since it is larger than the sum of its proper divisors (101008854333889).

665162011125311 is a wasteful number, since it uses less digits than its factorization.

665162011125311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748213735933.

The product of its (nonzero) digits is 64800, while the sum is 41.

Adding to 665162011125311 its reverse (113521110261566), we get a palindrome (778683121386877).

The spelling of 665162011125311 in words is "six hundred sixty-five trillion, one hundred sixty-two billion, eleven million, one hundred twenty-five thousand, three hundred eleven".