665662098706 has 16 divisors (see below), whose sum is σ = 1124402842368. Its totient is φ = 292813239600.

The previous prime is 665662098701. The next prime is 665662098743. The reversal of 665662098706 is 607890266566.

665662098706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (665662098701) 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, 488021385 + ... + 488022748.

It is an arithmetic number, because the mean of its divisors is an integer number (70275177648).

Almost surely, 2^665662098706 is an apocalyptic number.

665662098706 is a deficient number, since it is larger than the sum of its proper divisors (458740743662).

665662098706 is a wasteful number, since it uses less digits than its factorization.

665662098706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976044177.

The product of its (nonzero) digits is 39191040, while the sum is 61.

The spelling of 665662098706 in words is "six hundred sixty-five billion, six hundred sixty-two million, ninety-eight thousand, seven hundred six".