64104640146 has 48 divisors (see below), whose sum is σ = 140618054304. Its totient is φ = 21103068672.

The previous prime is 64104640121. The next prime is 64104640183.

64104640146 is a `hidden beast` number, since 6 + 4 + 1 + 0 + 4 + 640 + 1 + 4 + 6 = 666.

64104640146 is nontrivially palindromic in base 10.

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 64104640146.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5293170 + ... + 5305266.

It is an arithmetic number, because the mean of its divisors is an integer number (2929542798).

Almost surely, 2^64104640146 is an apocalyptic number.

64104640146 is an abundant number, since it is smaller than the sum of its proper divisors (76513414158).

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

64104640146 is a wasteful number, since it uses less digits than its factorization.

64104640146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15735 (or 15732 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 64104640146 in words is "sixty-four billion, one hundred four million, six hundred forty thousand, one hundred forty-six".