1646341064 has 32 divisors (see below), whose sum is σ = 3270365280. Its totient is φ = 774299904.

The previous prime is 1646341061. The next prime is 1646341069. The reversal of 1646341064 is 4601436461.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1646341061) 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, 415139 + ... + 419085.

It is an arithmetic number, because the mean of its divisors is an integer number (102198915).

Almost surely, 2^1646341064 is an apocalyptic number.

It is an amenable number.

1646341064 is a deficient number, since it is larger than the sum of its proper divisors (1624024216).

1646341064 is a wasteful number, since it uses less digits than its factorization.

1646341064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7037 (or 7033 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 1646341064 is about 40575.1286381202. The cubic root of 1646341064 is about 1180.7916415300.

The spelling of 1646341064 in words is "one billion, six hundred forty-six million, three hundred forty-one thousand, sixty-four".