665152030444 has 24 divisors (see below), whose sum is σ = 1272851966736. Its totient is φ = 301623672000.

The previous prime is 665152030429. The next prime is 665152030451. The reversal of 665152030444 is 444030251566.

It is a junction number, because it is equal to n+sod(n) for n = 665152030397 and 665152030406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17935267 + ... + 17972314.

It is an arithmetic number, because the mean of its divisors is an integer number (53035498614).

Almost surely, 2^665152030444 is an apocalyptic number.

It is an amenable number.

665152030444 is a deficient number, since it is larger than the sum of its proper divisors (607699936292).

665152030444 is a wasteful number, since it uses less digits than its factorization.

665152030444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35908017 (or 35908015 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 665152030444 in words is "six hundred sixty-five billion, one hundred fifty-two million, thirty thousand, four hundred forty-four".