65564454645 has 32 divisors (see below), whose sum is σ = 116824646400. Its totient is φ = 34888024512.

The previous prime is 65564454623. The next prime is 65564454667. The reversal of 65564454645 is 54645446556.

65564454645 is a `hidden beast` number, since 6 + 5 + 56 + 4 + 4 + 546 + 45 = 666.

It is an interprime number because it is at equal distance from previous prime (65564454623) and next prime (65564454667).

It is not a de Polignac number, because 65564454645 - 2¹⁶ = 65564389109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65564454591 and 65564454600.

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, 493882 + ... + 612411.

It is an arithmetic number, because the mean of its divisors is an integer number (3650770200).

Almost surely, 2^65564454645 is an apocalyptic number.

It is an amenable number.

65564454645 is a deficient number, since it is larger than the sum of its proper divisors (51260191755).

65564454645 is a wasteful number, since it uses less digits than its factorization.

65564454645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106746 (or 1106740 counting only the distinct ones).

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

The spelling of 65564454645 in words is "sixty-five billion, five hundred sixty-four million, four hundred fifty-four thousand, six hundred forty-five".