64532441659976 has 16 divisors (see below), whose sum is σ = 121001027050800. Its totient is φ = 32265501113104.

The previous prime is 64532441659913. The next prime is 64532441659979. The reversal of 64532441659976 is 67995614423546.

It is not an unprimeable number, because it can be changed into a prime (64532441659979) 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, 89583446 + ... + 90300933.

It is an arithmetic number, because the mean of its divisors is an integer number (7562564190675).

Almost surely, 2^{64532441659976} is an apocalyptic number.

It is an amenable number.

64532441659976 is a deficient number, since it is larger than the sum of its proper divisors (56468585390824).

64532441659976 is a wasteful number, since it uses less digits than its factorization.

64532441659976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179929228 (or 179929224 counting only the distinct ones).

The product of its digits is 1175731200, while the sum is 71.

The spelling of 64532441659976 in words is "sixty-four trillion, five hundred thirty-two billion, four hundred forty-one million, six hundred fifty-nine thousand, nine hundred seventy-six".