1646008612 has 48 divisors (see below), whose sum is σ = 3156475392. Its totient is φ = 747671040.

The previous prime is 1646008543. The next prime is 1646008619. The reversal of 1646008612 is 2168006461.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (1646008619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1101738 + ... + 1103230.

It is an arithmetic number, because the mean of its divisors is an integer number (65759904).

Almost surely, 2^1646008612 is an apocalyptic number.

It is an amenable number.

1646008612 is a deficient number, since it is larger than the sum of its proper divisors (1510466780).

1646008612 is a wasteful number, since it uses less digits than its factorization.

1646008612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068 (or 2066 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 1646008612 is about 40571.0316851815. The cubic root of 1646008612 is about 1180.7121555762.

The spelling of 1646008612 in words is "one billion, six hundred forty-six million, eight thousand, six hundred twelve".