665324115630 has 32 divisors (see below), whose sum is σ = 1599915002400. Its totient is φ = 177071194752.

The previous prime is 665324115619. The next prime is 665324115647. The reversal of 665324115630 is 36511423566.

665324115630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×665324115630² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21770065 + ... + 21800604.

It is an arithmetic number, because the mean of its divisors is an integer number (49997343825).

Almost surely, 2^665324115630 is an apocalyptic number.

665324115630 is an abundant number, since it is smaller than the sum of its proper divisors (934590886770).

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

665324115630 is a wasteful number, since it uses less digits than its factorization.

665324115630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43571188.

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 665324115630 in words is "six hundred sixty-five billion, three hundred twenty-four million, one hundred fifteen thousand, six hundred thirty".