64466560552 has 8 divisors (see below), whose sum is σ = 120874801050. Its totient is φ = 32233280272.

The previous prime is 64466560541. The next prime is 64466560573. The reversal of 64466560552 is 25506566446.

It can be written as a sum of positive squares in only one way, i.e., 56213564836 + 8252995716 = 237094^2 + 90846^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 64466560496 and 64466560505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4029160027 + ... + 4029160042.

Almost surely, 2^64466560552 is an apocalyptic number.

It is an amenable number.

64466560552 is a deficient number, since it is larger than the sum of its proper divisors (56408240498).

64466560552 is a wasteful number, since it uses less digits than its factorization.

64466560552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8058320075 (or 8058320071 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 49.

The spelling of 64466560552 in words is "sixty-four billion, four hundred sixty-six million, five hundred sixty thousand, five hundred fifty-two".