662464602644 has 24 divisors (see below), whose sum is σ = 1248628578120. Its totient is φ = 305719196544.

The previous prime is 662464602641. The next prime is 662464602673. The reversal of 662464602644 is 446206464266.

It can be written as a sum of positive squares in 4 ways, for example, as 260937072400 + 401527530244 = 510820^2 + 633662^2 .

It is a junction number, because it is equal to n+sod(n) for n = 662464602592 and 662464602601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662464602641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222539 + ... + 1172370.

It is an arithmetic number, because the mean of its divisors is an integer number (52026190755).

Almost surely, 2^662464602644 is an apocalyptic number.

It is an amenable number.

662464602644 is a deficient number, since it is larger than the sum of its proper divisors (586163975476).

662464602644 is a wasteful number, since it uses less digits than its factorization.

662464602644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404059 (or 1404057 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 50.

The spelling of 662464602644 in words is "six hundred sixty-two billion, four hundred sixty-four million, six hundred two thousand, six hundred forty-four".