64511158606843 has 4 divisors (see below), whose sum is σ = 69473555422768. Its totient is φ = 59548761790920.

The previous prime is 64511158606793. The next prime is 64511158606847. The reversal of 64511158606843 is 34860685111546.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64511158606843 - 2²¹ = 64511156509691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64511158606847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2481198407943 + ... + 2481198407968.

It is an arithmetic number, because the mean of its divisors is an integer number (17368388855692).

Almost surely, 2^{64511158606843} is an apocalyptic number.

64511158606843 is a deficient number, since it is larger than the sum of its proper divisors (4962396815925).

64511158606843 is a wasteful number, since it uses less digits than its factorization.

64511158606843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4962396815924.

The product of its (nonzero) digits is 16588800, while the sum is 58.

The spelling of 64511158606843 in words is "sixty-four trillion, five hundred eleven billion, one hundred fifty-eight million, six hundred six thousand, eight hundred forty-three".