6465420245646 has 64 divisors (see below), whose sum is σ = 14639060102400. Its totient is φ = 2114560855008.

The previous prime is 6465420245623. The next prime is 6465420245731.

6465420245646 is a `hidden beast` number, since 6 + 4 + 6 + 54 + 2 + 0 + 24 + 564 + 6 = 666.

6465420245646 is nontrivially palindromic in base 10.

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

It is a junction number, because it is equal to n+sod(n) for n = 6465420245592 and 6465420245601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273801 + ... + 3606356.

It is an arithmetic number, because the mean of its divisors is an integer number (228735314100).

Almost surely, 2^{6465420245646} is an apocalyptic number.

6465420245646 is an abundant number, since it is smaller than the sum of its proper divisors (8173639856754).

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

6465420245646 is a wasteful number, since it uses less digits than its factorization.

6465420245646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880750 (or 3880744 counting only the distinct ones).

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

The spelling of 6465420245646 in words is "six trillion, four hundred sixty-five billion, four hundred twenty million, two hundred forty-five thousand, six hundred forty-six".