56464646466 has 16 divisors (see below), whose sum is σ = 112962636288. Its totient is φ = 18815991600.

The previous prime is 56464646461. The next prime is 56464646473. The reversal of 56464646466 is 66464646465.

It is not an unprimeable number, because it can be changed into a prime (56464646461) 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, 1367265 + ... + 1407956.

It is an arithmetic number, because the mean of its divisors is an integer number (7060164768).

Almost surely, 2^56464646466 is an apocalyptic number.

56464646466 is an abundant number, since it is smaller than the sum of its proper divisors (56497989822).

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

56464646466 is a wasteful number, since it uses less digits than its factorization.

56464646466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778617.

The product of its digits is 59719680, while the sum is 57.

Subtracting 56464646466 from its reverse (66464646465), we obtain a palindrome (9999999999).

The spelling of 56464646466 in words is "fifty-six billion, four hundred sixty-four million, six hundred forty-six thousand, four hundred sixty-six".