64120200543 has 24 divisors (see below), whose sum is σ = 111420233600. Its totient is φ = 34711686864.

The previous prime is 64120200493. The next prime is 64120200587. The reversal of 64120200543 is 34500202146.

64120200543 is a `hidden beast` number, since 6 + 412 + 0 + 200 + 5 + 43 = 666.

It is not a de Polignac number, because 64120200543 - 2¹⁰ = 64120199519 is a prime.

It is a super-2 number, since 2×64120200543² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64120200043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26782513 + ... + 26784906.

Almost surely, 2^64120200543 is an apocalyptic number.

64120200543 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

64120200543 is a deficient number, since it is larger than the sum of its proper divisors (47300033057).

64120200543 is a wasteful number, since it uses less digits than its factorization.

64120200543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53567451 (or 53567448 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 64120200543 its reverse (34500202146), we get a palindrome (98620402689).

The spelling of 64120200543 in words is "sixty-four billion, one hundred twenty million, two hundred thousand, five hundred forty-three".