646145741304 has 128 divisors (see below), whose sum is σ = 2060061120000. Its totient is φ = 183820637952.

The previous prime is 646145741303. The next prime is 646145741317. The reversal of 646145741304 is 403147541646.

646145741304 is a `hidden beast` number, since 6 + 4 + 61 + 4 + 574 + 13 + 0 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 646145741304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646145741303) 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 31 ways as a sum of consecutive naturals, for example, 564754 + ... + 1269345.

It is an arithmetic number, because the mean of its divisors is an integer number (16094227500).

Almost surely, 2^646145741304 is an apocalyptic number.

It is an amenable number.

646145741304 is an abundant number, since it is smaller than the sum of its proper divisors (1413915378696).

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

646145741304 is a wasteful number, since it uses less digits than its factorization.

646145741304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834354 (or 1834344 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 646145741304 in words is "six hundred forty-six billion, one hundred forty-five million, seven hundred forty-one thousand, three hundred four".