612017664 has 160 divisors (see below), whose sum is σ = 1747447680. Its totient is φ = 189775872.

The previous prime is 612017639. The next prime is 612017677. The reversal of 612017664 is 466710216.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1955172 + ... + 1955484.

It is an arithmetic number, because the mean of its divisors is an integer number (10921548).

Almost surely, 2^612017664 is an apocalyptic number.

612017664 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612017664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (873723840).

612017664 is an abundant number, since it is smaller than the sum of its proper divisors (1135430016).

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

612017664 is a wasteful number, since it uses less digits than its factorization.

612017664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 612017664 is about 24738.9907635700. The cubic root of 612017664 is about 849.0266431336.

The spelling of 612017664 in words is "six hundred twelve million, seventeen thousand, six hundred sixty-four".