64547671066 has 8 divisors (see below), whose sum is σ = 97415504064. Its totient is φ = 32075836380.

The previous prime is 64547671061. The next prime is 64547671079. The reversal of 64547671066 is 66017674546.

64547671066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (64547671061) 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, 98999170 + ... + 98999821.

It is an arithmetic number, because the mean of its divisors is an integer number (12176938008).

Almost surely, 2^64547671066 is an apocalyptic number.

64547671066 is a deficient number, since it is larger than the sum of its proper divisors (32867832998).

64547671066 is a wasteful number, since it uses less digits than its factorization.

64547671066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197999156.

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 64547671066 in words is "sixty-four billion, five hundred forty-seven million, six hundred seventy-one thousand, sixty-six".