64543259555 has 32 divisors (see below), whose sum is σ = 78680976000. Its totient is φ = 50823936000.

The previous prime is 64543259519. The next prime is 64543259569. The reversal of 64543259555 is 55595234546.

It is not a de Polignac number, because 64543259555 - 2¹⁰ = 64543258531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64543259497 and 64543259506.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41666921 + ... + 41668469.

It is an arithmetic number, because the mean of its divisors is an integer number (2458780500).

Almost surely, 2^64543259555 is an apocalyptic number.

64543259555 is a deficient number, since it is larger than the sum of its proper divisors (14137716445).

64543259555 is a wasteful number, since it uses less digits than its factorization.

64543259555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175.

The product of its digits is 16200000, while the sum is 53.

The spelling of 64543259555 in words is "sixty-four billion, five hundred forty-three million, two hundred fifty-nine thousand, five hundred fifty-five".