646010546 has 8 divisors (see below), whose sum is σ = 969126060. Its totient is φ = 322968528.

The previous prime is 646010537. The next prime is 646010551. The reversal of 646010546 is 645010646.

It can be written as a sum of positive squares in 2 ways, for example, as 639533521 + 6477025 = 25289^2 + 2545^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 18020 + ... + 40208.

Almost surely, 2^646010546 is an apocalyptic number.

646010546 is a deficient number, since it is larger than the sum of its proper divisors (323115514).

646010546 is a wasteful number, since it uses less digits than its factorization.

646010546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36748.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 646010546 is about 25416.7375168411. The cubic root of 646010546 is about 864.4632512668.

The spelling of 646010546 in words is "six hundred forty-six million, ten thousand, five hundred forty-six".