6356523664 has 20 divisors (see below), whose sum is σ = 12351267504. Its totient is φ = 3169099808.

The previous prime is 6356523661. The next prime is 6356523707. The reversal of 6356523664 is 4663256536.

It is not an unprimeable number, because it can be changed into a prime (6356523661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566902 + ... + 578005.

Almost surely, 2^6356523664 is an apocalyptic number.

It is an amenable number.

6356523664 is a deficient number, since it is larger than the sum of its proper divisors (5994743840).

6356523664 is a wasteful number, since it uses less digits than its factorization.

6356523664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145262 (or 1145256 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 46.

The square root of 6356523664 is about 79727.8098532752. The cubic root of 6356523664 is about 1852.4218259273.

The spelling of 6356523664 in words is "six billion, three hundred fifty-six million, five hundred twenty-three thousand, six hundred sixty-four".