56464646465 has 8 divisors (see below), whose sum is σ = 67760412840. Its totient is φ = 45169825792.

The previous prime is 56464646461. The next prime is 56464646473.

56464646465 is nontrivially palindromic in base 10.

56464646465 is digitally balanced in base 11, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4724775169 + 51739871296 = 68737^2 + 227464^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56464646465 - 2² = 56464646461 is a prime.

56464646465 is strictly pandigital in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 56464646465.

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, 97664 + ... + 349953.

It is an arithmetic number, because the mean of its divisors is an integer number (8470051605).

Almost surely, 2^56464646465 is an apocalyptic number.

It is an amenable number.

56464646465 is a deficient number, since it is larger than the sum of its proper divisors (11295766375).

56464646465 is a wasteful number, since it uses less digits than its factorization.

56464646465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472851.

The product of its digits is 49766400, while the sum is 56.

The spelling of 56464646465 in words is "fifty-six billion, four hundred sixty-four million, six hundred forty-six thousand, four hundred sixty-five".