6445460675553 has 16 divisors (see below), whose sum is σ = 8648327571456. Its totient is φ = 4269793882320.

The previous prime is 6445460675551. The next prime is 6445460675567. The reversal of 6445460675553 is 3555760645446.

It is not a de Polignac number, because 6445460675553 - 2¹ = 6445460675551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6445460675551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1298076 + ... + 3817842.

It is an arithmetic number, because the mean of its divisors is an integer number (540520473216).

Almost surely, 2^{6445460675553} is an apocalyptic number.

It is an amenable number.

6445460675553 is a deficient number, since it is larger than the sum of its proper divisors (2202866895903).

6445460675553 is a wasteful number, since it uses less digits than its factorization.

6445460675553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525164.

The product of its (nonzero) digits is 181440000, while the sum is 60.

The spelling of 6445460675553 in words is "six trillion, four hundred forty-five billion, four hundred sixty million, six hundred seventy-five thousand, five hundred fifty-three".