664107435 has 24 divisors (see below), whose sum is σ = 1162303584. Its totient is φ = 350749440.

The previous prime is 664107407. The next prime is 664107439. The reversal of 664107435 is 534701466.

It is a happy number.

664107435 is a `hidden beast` number, since 6 + 641 + 0 + 7 + 4 + 3 + 5 = 666.

It is not a de Polignac number, because 664107435 - 2⁶ = 664107371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 664107435.

It is not an unprimeable number, because it can be changed into a prime (664107439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67006 + ... + 76275.

It is an arithmetic number, because the mean of its divisors is an integer number (48429316).

Almost surely, 2^664107435 is an apocalyptic number.

664107435 is a deficient number, since it is larger than the sum of its proper divisors (498196149).

664107435 is a wasteful number, since it uses less digits than its factorization.

664107435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143395 (or 143392 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 664107435 is about 25770.2820124266. The cubic root of 664107435 is about 872.4611838682.

The spelling of 664107435 in words is "six hundred sixty-four million, one hundred seven thousand, four hundred thirty-five".