6645420053036 has 12 divisors (see below), whose sum is σ = 11629513276920. Its totient is φ = 3322701973920.

The previous prime is 6645420053011. The next prime is 6645420053039. The reversal of 6645420053036 is 6303500245466.

It is not an unprimeable number, because it can be changed into a prime (6645420053039) 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 3 ways as a sum of consecutive naturals, for example, 87131 + ... + 3646701.

It is an arithmetic number, because the mean of its divisors is an integer number (969126106410).

Almost surely, 2^{6645420053036} is an apocalyptic number.

It is an amenable number.

6645420053036 is a deficient number, since it is larger than the sum of its proper divisors (4984093223884).

6645420053036 is a wasteful number, since it uses less digits than its factorization.

6645420053036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026304 (or 4026302 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 44.

The spelling of 6645420053036 in words is "six trillion, six hundred forty-five billion, four hundred twenty million, fifty-three thousand, thirty-six".