654445544456 has 64 divisors (see below), whose sum is σ = 1353439713600. Its totient is φ = 294192864000.

The previous prime is 654445544443. The next prime is 654445544471.

654445544456 is nontrivially palindromic in base 10.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7806410 + ... + 7889798.

It is an arithmetic number, because the mean of its divisors is an integer number (21147495525).

Almost surely, 2^654445544456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654445544456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (676719856800).

654445544456 is an abundant number, since it is smaller than the sum of its proper divisors (698994169144).

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

654445544456 is a wasteful number, since it uses less digits than its factorization.

654445544456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84390 (or 84386 counting only the distinct ones).

The product of its digits is 92160000, while the sum is 56.

The spelling of 654445544456 in words is "six hundred fifty-four billion, four hundred forty-five million, five hundred forty-four thousand, four hundred fifty-six".