6465546455646 has 32 divisors (see below), whose sum is σ = 12969919918368. Its totient is φ = 2148716441600.

The previous prime is 6465546455573. The next prime is 6465546455653.

6465546455646 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4066030 + ... + 5428046.

It is an arithmetic number, because the mean of its divisors is an integer number (405309997449).

Almost surely, 2^{6465546455646} is an apocalyptic number.

6465546455646 is an abundant number, since it is smaller than the sum of its proper divisors (6504373462722).

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

6465546455646 is a wasteful number, since it uses less digits than its factorization.

6465546455646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364396.

The product of its digits is 1244160000, while the sum is 66.

The spelling of 6465546455646 in words is "six trillion, four hundred sixty-five billion, five hundred forty-six million, four hundred fifty-five thousand, six hundred forty-six".