646118146 has 8 divisors (see below), whose sum is σ = 969327504. Its totient is φ = 323008980.

The previous prime is 646118131. The next prime is 646118147. The reversal of 646118146 is 641811646.

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

It is not an unprimeable number, because it can be changed into a prime (646118147) 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 in 3 ways as a sum of consecutive naturals, for example, 6040 + ... + 36451.

It is an arithmetic number, because the mean of its divisors is an integer number (121165938).

Almost surely, 2^646118146 is an apocalyptic number.

646118146 is a deficient number, since it is larger than the sum of its proper divisors (323209358).

646118146 is a wasteful number, since it uses less digits than its factorization.

646118146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50096.

The product of its digits is 27648, while the sum is 37.

The square root of 646118146 is about 25418.8541441191. The cubic root of 646118146 is about 864.5112438177.

The spelling of 646118146 in words is "six hundred forty-six million, one hundred eighteen thousand, one hundred forty-six".