664474315 has 8 divisors (see below), whose sum is σ = 797622048. Its totient is φ = 531410880.

The previous prime is 664474259. The next prime is 664474357. The reversal of 664474315 is 513474466.

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

It is not a de Polignac number, because 664474315 - 2¹¹ = 664472267 is a prime.

It is a super-2 number, since 2×664474315² = 883052230589438450, which contains 22 as substring.

It is a Duffinian number.

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, 2191 + ... + 36520.

It is an arithmetic number, because the mean of its divisors is an integer number (99702756).

Almost surely, 2^664474315 is an apocalyptic number.

664474315 is a deficient number, since it is larger than the sum of its proper divisors (133147733).

664474315 is a wasteful number, since it uses less digits than its factorization.

664474315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42149.

The product of its digits is 241920, while the sum is 40.

The square root of 664474315 is about 25777.3993063691. The cubic root of 664474315 is about 872.6218153249.

The spelling of 664474315 in words is "six hundred sixty-four million, four hundred seventy-four thousand, three hundred fifteen".