664466515352 has 32 divisors (see below), whose sum is σ = 1267919308800. Its totient is φ = 326362949664.

The previous prime is 664466515327. The next prime is 664466515357. The reversal of 664466515352 is 253515664466.

It is a junction number, because it is equal to n+sod(n) for n = 664466515294 and 664466515303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664466515357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130313 + ... + 1160135.

It is an arithmetic number, because the mean of its divisors is an integer number (39622478400).

Almost surely, 2^664466515352 is an apocalyptic number.

It is an amenable number.

664466515352 is a deficient number, since it is larger than the sum of its proper divisors (603452793448).

664466515352 is a wasteful number, since it uses less digits than its factorization.

664466515352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031255 (or 1031251 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 53.

The spelling of 664466515352 in words is "six hundred sixty-four billion, four hundred sixty-six million, five hundred fifteen thousand, three hundred fifty-two".