654642646246456 has 32 divisors (see below), whose sum is σ = 1405116717834240. Its totient is φ = 280098924644448.

The previous prime is 654642646246447. The next prime is 654642646246489.

654642646246456 is nontrivially palindromic in base 10.

It is a super-4 number, since 4×654642646246456⁴ (a number of 60 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9629329480 + ... + 9629397463.

It is an arithmetic number, because the mean of its divisors is an integer number (43909897432320).

Almost surely, 2^{654642646246456} is an apocalyptic number.

It is an amenable number.

654642646246456 is an abundant number, since it is smaller than the sum of its proper divisors (750474071587784).

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

654642646246456 is a wasteful number, since it uses less digits than its factorization.

654642646246456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19258727563 (or 19258727559 counting only the distinct ones).

The product of its digits is 4777574400, while the sum is 70.

The spelling of 654642646246456 in words is "six hundred fifty-four trillion, six hundred forty-two billion, six hundred forty-six million, two hundred forty-six thousand, four hundred fifty-six".