6460554064644 has 45 divisors (see below), whose sum is σ = 16889284088677. Its totient is φ = 2153502770976.

The previous prime is 6460554064639. The next prime is 6460554064649. The reversal of 6460554064644 is 4464604550646.

The square root of 6460554064644 is 2541762.

It is a perfect power (a square), and thus also a powerful number.

6460554064644 is a `hidden beast` number, since 6 + 4 + 6 + 0 + 554 + 0 + 6 + 46 + 44 = 666.

It is an interprime number because it is at equal distance from previous prime (6460554064639) and next prime (6460554064649).

It can be written as a sum of positive squares in only one way, i.e., 1310196151044 + 5150357913600 = 1144638^2 + 2269440^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6460554064649) 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 14 ways as a sum of consecutive naturals, for example, 45681112 + ... + 45822320.

Almost surely, 2^{6460554064644} is an apocalyptic number.

6460554064644 is the 2541762-nd square number.

It is an amenable number.

6460554064644 is an abundant number, since it is smaller than the sum of its proper divisors (10428730024033).

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

6460554064644 is an frugal number, since it uses more digits than its factorization.

6460554064644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282434 (or 141214 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 54.

The spelling of 6460554064644 in words is "six trillion, four hundred sixty billion, five hundred fifty-four million, sixty-four thousand, six hundred forty-four".