664054536 has 32 divisors (see below), whose sum is σ = 1662193440. Its totient is φ = 221077248.

The previous prime is 664054483. The next prime is 664054553. The reversal of 664054536 is 635450466.

It is a junction number, because it is equal to n+sod(n) for n = 664054494 and 664054503.

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, 3120 + ... + 36576.

It is an arithmetic number, because the mean of its divisors is an integer number (51943545).

Almost surely, 2^664054536 is an apocalyptic number.

It is an amenable number.

664054536 is an abundant number, since it is smaller than the sum of its proper divisors (998138904).

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

664054536 is a wasteful number, since it uses less digits than its factorization.

664054536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34293 (or 34289 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 39.

The square root of 664054536 is about 25769.2556353497. The cubic root of 664054536 is about 872.4380181638.

The spelling of 664054536 in words is "six hundred sixty-four million, fifty-four thousand, five hundred thirty-six".