1646000072 has 16 divisors (see below), whose sum is σ = 3086689200. Its totient is φ = 822882960.

The previous prime is 1646000051. The next prime is 1646000101. The reversal of 1646000072 is 2700006461.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85079 + ... + 102617.

It is an arithmetic number, because the mean of its divisors is an integer number (192918075).

Almost surely, 2^1646000072 is an apocalyptic number.

It is an amenable number.

1646000072 is a deficient number, since it is larger than the sum of its proper divisors (1440689128).

1646000072 is a wasteful number, since it uses less digits than its factorization.

1646000072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29276 (or 29272 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1646000072 is about 40570.9264375365. The cubic root of 1646000072 is about 1180.7101136064.

The spelling of 1646000072 in words is "one billion, six hundred forty-six million, seventy-two", and thus it is an aban number.