641346616 has 8 divisors (see below), whose sum is σ = 1202524920. Its totient is φ = 320673304.

The previous prime is 641346613. The next prime is 641346623. The reversal of 641346616 is 616643146.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×641346616² = 822650963709302912, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641346613) by changing a digit.

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 as a sum of consecutive naturals, namely, 40084156 + ... + 40084171.

It is an arithmetic number, because the mean of its divisors is an integer number (150315615).

Almost surely, 2^641346616 is an apocalyptic number.

It is an amenable number.

641346616 is a deficient number, since it is larger than the sum of its proper divisors (561178304).

641346616 is a wasteful number, since it uses less digits than its factorization.

641346616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80168333 (or 80168329 counting only the distinct ones).

The product of its digits is 62208, while the sum is 37.

The square root of 641346616 is about 25324.8221316557. The cubic root of 641346616 is about 862.3778684731.

The spelling of 641346616 in words is "six hundred forty-one million, three hundred forty-six thousand, six hundred sixteen".