665162157214 has 4 divisors (see below), whose sum is σ = 997743235824. Its totient is φ = 332581078606.

The previous prime is 665162157173. The next prime is 665162157217. The reversal of 665162157214 is 412751261566.

665162157214 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665162157217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166290539302 + ... + 166290539305.

It is an arithmetic number, because the mean of its divisors is an integer number (249435808956).

Almost surely, 2^665162157214 is an apocalyptic number.

665162157214 is a deficient number, since it is larger than the sum of its proper divisors (332581078610).

665162157214 is a wasteful number, since it uses less digits than its factorization.

665162157214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332581078609.

The product of its digits is 604800, while the sum is 46.

The spelling of 665162157214 in words is "six hundred sixty-five billion, one hundred sixty-two million, one hundred fifty-seven thousand, two hundred fourteen".