64115304101 has 4 divisors (see below), whose sum is σ = 64993596012. Its totient is φ = 63237012192.

The previous prime is 64115304061. The next prime is 64115304119. The reversal of 64115304101 is 10140351146.

It is a Cunningham number, because it is equal to 253210²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 36394719076 + 27720585025 = 190774^2 + 166495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64115304101 is a prime.

It is a super-2 number, since 2×64115304101² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64115304181) 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, 439145846 + ... + 439145991.

It is an arithmetic number, because the mean of its divisors is an integer number (16248399003).

Almost surely, 2^64115304101 is an apocalyptic number.

It is an amenable number.

64115304101 is a deficient number, since it is larger than the sum of its proper divisors (878291911).

64115304101 is an equidigital number, since it uses as much as digits as its factorization.

64115304101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878291910.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 64115304101 its reverse (10140351146), we get a palindrome (74255655247).

The spelling of 64115304101 in words is "sixty-four billion, one hundred fifteen million, three hundred four thousand, one hundred one".