56445654465 has 32 divisors (see below), whose sum is σ = 100456070400. Its totient is φ = 30071877120.

The previous prime is 56445654451. The next prime is 56445654481.

56445654465 is a `hidden beast` number, since 5 + 6 + 44 + 56 + 544 + 6 + 5 = 666.

56445654465 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56445654465 - 2¹³ = 56445646273 is a prime.

It is a super-2 number, since 2×56445654465² (a number of 22 digits) contains 22 as substring.

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, 99621 + ... + 350450.

It is an arithmetic number, because the mean of its divisors is an integer number (3139252200).

Almost surely, 2^56445654465 is an apocalyptic number.

It is an amenable number.

56445654465 is a deficient number, since it is larger than the sum of its proper divisors (44010415935).

56445654465 is a wasteful number, since it uses less digits than its factorization.

56445654465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451014 (or 451008 counting only the distinct ones).

The product of its digits is 34560000, while the sum is 54.

The spelling of 56445654465 in words is "fifty-six billion, four hundred forty-five million, six hundred fifty-four thousand, four hundred sixty-five".