64500651532 has 12 divisors (see below), whose sum is σ = 112878852520. Its totient is φ = 32249550816.

The previous prime is 64500651521. The next prime is 64500651539. The reversal of 64500651532 is 23515600546.

It is a junction number, because it is equal to n+sod(n) for n = 64500651491 and 64500651500.

It is not an unprimeable number, because it can be changed into a prime (64500651539) 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, 19648 + ... + 359704.

Almost surely, 2^64500651532 is an apocalyptic number.

It is an amenable number.

64500651532 is a deficient number, since it is larger than the sum of its proper divisors (48378200988).

64500651532 is a wasteful number, since it uses less digits than its factorization.

64500651532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387480 (or 387478 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 64500651532 in words is "sixty-four billion, five hundred million, six hundred fifty-one thousand, five hundred thirty-two".