1646335012 has 24 divisors (see below), whose sum is σ = 3486357504. Its totient is φ = 664067712.

The previous prime is 1646335003. The next prime is 1646335013. The reversal of 1646335012 is 2105336461.

It is not an unprimeable number, because it can be changed into a prime (1646335013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1728868 + ... + 1729819.

It is an arithmetic number, because the mean of its divisors is an integer number (145264896).

Almost surely, 2^1646335012 is an apocalyptic number.

It is an amenable number.

1646335012 is an abundant number, since it is smaller than the sum of its proper divisors (1840022492).

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

1646335012 is a wasteful number, since it uses less digits than its factorization.

1646335012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3458715 (or 3458713 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1646335012 is about 40575.0540603460. The cubic root of 1646335012 is about 1180.7901946528.

The spelling of 1646335012 in words is "one billion, six hundred forty-six million, three hundred thirty-five thousand, twelve".