654516240420 has 96 divisors (see below), whose sum is σ = 2204686310400. Its totient is φ = 141729830784.

The previous prime is 654516240397. The next prime is 654516240451. The reversal of 654516240420 is 24042615456.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41001810 + ... + 41017769.

It is an arithmetic number, because the mean of its divisors is an integer number (22965482400).

Almost surely, 2^654516240420 is an apocalyptic number.

654516240420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

654516240420 is an abundant number, since it is smaller than the sum of its proper divisors (1550170069980).

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

654516240420 is a wasteful number, since it uses less digits than its factorization.

654516240420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82019617 (or 82019615 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

Adding to 654516240420 its reverse (24042615456), we get a palindrome (678558855876).

The spelling of 654516240420 in words is "six hundred fifty-four billion, five hundred sixteen million, two hundred forty thousand, four hundred twenty".