654616020 has 48 divisors (see below), whose sum is σ = 1855022400. Its totient is φ = 172459776.

The previous prime is 654616013. The next prime is 654616031. The reversal of 654616020 is 20616456.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 60745 + ... + 70704.

It is an arithmetic number, because the mean of its divisors is an integer number (38646300).

Almost surely, 2^654616020 is an apocalyptic number.

654616020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

654616020 is an abundant number, since it is smaller than the sum of its proper divisors (1200406380).

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

654616020 is a wasteful number, since it uses less digits than its factorization.

654616020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131544 (or 131542 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 654616020 is about 25585.4650143397. The cubic root of 654616020 is about 868.2848226807.

The spelling of 654616020 in words is "six hundred fifty-four million, six hundred sixteen thousand, twenty".