64455343555 has 8 divisors (see below), whose sum is σ = 77350586544. Its totient is φ = 51561492000.

The previous prime is 64455343541. The next prime is 64455343559. The reversal of 64455343555 is 55534355446.

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

It is not a de Polignac number, because 64455343555 - 2¹⁹ = 64454819267 is a prime.

It is a super-3 number, since 3×64455343555³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64455343499 and 64455343508.

It is not an unprimeable number, because it can be changed into a prime (64455343559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243076 + ... + 433585.

It is an arithmetic number, because the mean of its divisors is an integer number (9668823318).

Almost surely, 2^64455343555 is an apocalyptic number.

64455343555 is a deficient number, since it is larger than the sum of its proper divisors (12895242989).

64455343555 is a wasteful number, since it uses less digits than its factorization.

64455343555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695717.

The product of its digits is 10800000, while the sum is 49.

The spelling of 64455343555 in words is "sixty-four billion, four hundred fifty-five million, three hundred forty-three thousand, five hundred fifty-five".