654416564443 has 16 divisors (see below), whose sum is σ = 673658496000. Its totient is φ = 635449350240.

The previous prime is 654416564407. The next prime is 654416564449. The reversal of 654416564443 is 344465614456.

It is a cyclic number.

It is not a de Polignac number, because 654416564443 - 2²⁵ = 654383010011 is a prime.

It is a super-2 number, since 2×654416564443² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654416564449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34019638 + ... + 34038868.

It is an arithmetic number, because the mean of its divisors is an integer number (42103656000).

Almost surely, 2^654416564443 is an apocalyptic number.

654416564443 is a deficient number, since it is larger than the sum of its proper divisors (19241931557).

654416564443 is a wasteful number, since it uses less digits than its factorization.

654416564443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26322.

The product of its digits is 16588800, while the sum is 52.

The spelling of 654416564443 in words is "six hundred fifty-four billion, four hundred sixteen million, five hundred sixty-four thousand, four hundred forty-three".