64144460122 has 8 divisors (see below), whose sum is σ = 96217938036. Its totient is φ = 32071814112.

The previous prime is 64144460117. The next prime is 64144460131. The reversal of 64144460122 is 22106444146.

It can be written as a sum of positive squares in 2 ways, for example, as 63856784601 + 287675521 = 252699^2 + 16961^2 .

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

It is a super-2 number, since 2×64144460122² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47608 + ... + 361324.

Almost surely, 2^64144460122 is an apocalyptic number.

64144460122 is a deficient number, since it is larger than the sum of its proper divisors (32073477914).

64144460122 is a wasteful number, since it uses less digits than its factorization.

64144460122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415952.

The product of its (nonzero) digits is 36864, while the sum is 34.

The spelling of 64144460122 in words is "sixty-four billion, one hundred forty-four million, four hundred sixty thousand, one hundred twenty-two".