64120432601 has 8 divisors (see below), whose sum is σ = 68127149160. Its totient is φ = 60348637824.

The previous prime is 64120432591. The next prime is 64120432637. The reversal of 64120432601 is 10623402146.

It can be written as a sum of positive squares in 4 ways, for example, as 7773067225 + 56347365376 = 88165^2 + 237376^2 .

It is not a de Polignac number, because 64120432601 - 2¹⁰ = 64120431577 is a prime.

It is a super-2 number, since 2×64120432601² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64120432681) 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, 6520676 + ... + 6530501.

It is an arithmetic number, because the mean of its divisors is an integer number (8515893645).

Almost surely, 2^64120432601 is an apocalyptic number.

It is an amenable number.

64120432601 is a deficient number, since it is larger than the sum of its proper divisors (4006716559).

64120432601 is an equidigital number, since it uses as much as digits as its factorization.

64120432601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13051228 (or 13051194 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 64120432601 its reverse (10623402146), we get a palindrome (74743834747).

The spelling of 64120432601 in words is "sixty-four billion, one hundred twenty million, four hundred thirty-two thousand, six hundred one".