654948816 has 40 divisors (see below), whose sum is σ = 1694787360. Its totient is φ = 217950336.

The previous prime is 654948769. The next prime is 654948821. The reversal of 654948816 is 618849456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18295 + ... + 40553.

It is an arithmetic number, because the mean of its divisors is an integer number (42369684).

Almost surely, 2^654948816 is an apocalyptic number.

It is an amenable number.

654948816 is an abundant number, since it is smaller than the sum of its proper divisors (1039838544).

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

654948816 is a wasteful number, since it uses less digits than its factorization.

654948816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22883 (or 22877 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 51.

The square root of 654948816 is about 25591.9678024180. The cubic root of 654948816 is about 868.4319383195.

The spelling of 654948816 in words is "six hundred fifty-four million, nine hundred forty-eight thousand, eight hundred sixteen".