665148862446 has 8 divisors (see below), whose sum is σ = 1330297724904. Its totient is φ = 221716287480.

The previous prime is 665148862439. The next prime is 665148862513. The reversal of 665148862446 is 644268841566.

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

665148862446 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 665148862446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55429071865 + ... + 55429071876.

It is an arithmetic number, because the mean of its divisors is an integer number (166287215613).

Almost surely, 2^665148862446 is an apocalyptic number.

665148862446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

665148862446 is a wasteful number, since it uses less digits than its factorization.

665148862446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110858143746.

The product of its digits is 53084160, while the sum is 60.

The spelling of 665148862446 in words is "six hundred sixty-five billion, one hundred forty-eight million, eight hundred sixty-two thousand, four hundred forty-six".