64566466546 has 8 divisors (see below), whose sum is σ = 97808608044. Its totient is φ = 31963597200.

The previous prime is 64566466541. The next prime is 64566466579.

64566466546 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 40218297025 + 24348169521 = 200545^2 + 156039^2 .

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 (64566466541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159817785 + ... + 159818188.

Almost surely, 2^64566466546 is an apocalyptic number.

64566466546 is a deficient number, since it is larger than the sum of its proper divisors (33242141498).

64566466546 is a wasteful number, since it uses less digits than its factorization.

64566466546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319636076.

The product of its digits is 74649600, while the sum is 58.

The spelling of 64566466546 in words is "sixty-four billion, five hundred sixty-six million, four hundred sixty-six thousand, five hundred forty-six".