64143034146 has 48 divisors (see below), whose sum is σ = 140567546808. Its totient is φ = 21136896000.

The previous prime is 64143034141. The next prime is 64143034157.

64143034146 is a `hidden beast` number, since 641 + 4 + 3 + 0 + 3 + 4 + 1 + 4 + 6 = 666.

64143034146 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 52856309025 + 11286725121 = 229905^2 + 106239^2 .

It is a super-2 number, since 2×64143034146² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 64143034146.

It is not an unprimeable number, because it can be changed into a prime (64143034141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1175010 + ... + 1228386.

Almost surely, 2^64143034146 is an apocalyptic number.

64143034146 is an abundant number, since it is smaller than the sum of its proper divisors (76424512662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64143034146 is a wasteful number, since it uses less digits than its factorization.

64143034146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54147 (or 54144 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

It can be divided in two parts, 641430 and 34146, that added together give a palindrome (675576).

The spelling of 64143034146 in words is "sixty-four billion, one hundred forty-three million, thirty-four thousand, one hundred forty-six".