64100000641 has 8 divisors (see below), whose sum is σ = 67976482824. Its totient is φ = 60235284480.

The previous prime is 64100000639. The next prime is 64100000707. The reversal of 64100000641 is 14600000146.

It can be written as a sum of positive squares in 4 ways, for example, as 40715168400 + 23384832241 = 201780^2 + 152921^2 .

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 64100000641 - 2¹ = 64100000639 is a prime.

It is a deceptive number, since it divides R_64100000640.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64100000611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2930280 + ... + 2952073.

It is an arithmetic number, because the mean of its divisors is an integer number (8497060353).

Almost surely, 2^64100000641 is an apocalyptic number.

It is an amenable number.

64100000641 is a deficient number, since it is larger than the sum of its proper divisors (3876482183).

64100000641 is a wasteful number, since it uses less digits than its factorization.

64100000641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5883011.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 64100000641 its reverse (14600000146), we get a palindrome (78700000787).

The spelling of 64100000641 in words is "sixty-four billion, one hundred million, six hundred forty-one", and thus it is an aban number.