664029356 has 24 divisors (see below), whose sum is σ = 1215648000. Its totient is φ = 316959104.

The previous prime is 664029341. The next prime is 664029371. The reversal of 664029356 is 653920466.

It is an interprime number because it is at equal distance from previous prime (664029341) and next prime (664029371).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21836 + ... + 42483.

It is an arithmetic number, because the mean of its divisors is an integer number (50652000).

Almost surely, 2^664029356 is an apocalyptic number.

It is an amenable number.

664029356 is a deficient number, since it is larger than the sum of its proper divisors (551618644).

664029356 is a wasteful number, since it uses less digits than its factorization.

664029356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64441 (or 64439 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 41.

The square root of 664029356 is about 25768.7670640254. The cubic root of 664029356 is about 872.4269908231.

The spelling of 664029356 in words is "six hundred sixty-four million, twenty-nine thousand, three hundred fifty-six".