64443532234103 has 8 divisors (see below), whose sum is σ = 70749818829840. Its totient is φ = 58211876249280.

The previous prime is 64443532234099. The next prime is 64443532234127. The reversal of 64443532234103 is 30143223534446.

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

It is a cyclic number.

It is not a de Polignac number, because 64443532234103 - 2² = 64443532234099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64443532233103) 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, 18657650918 + ... + 18657654371.

It is an arithmetic number, because the mean of its divisors is an integer number (8843727353730).

Almost surely, 2^{64443532234103} is an apocalyptic number.

64443532234103 is a deficient number, since it is larger than the sum of its proper divisors (6306286595737).

64443532234103 is a wasteful number, since it uses less digits than its factorization.

64443532234103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37315305457.

The product of its (nonzero) digits is 2488320, while the sum is 44.

Adding to 64443532234103 its reverse (30143223534446), we get a palindrome (94586755768549).

The spelling of 64443532234103 in words is "sixty-four trillion, four hundred forty-three billion, five hundred thirty-two million, two hundred thirty-four thousand, one hundred three".