1650012172 has 12 divisors (see below), whose sum is σ = 2936462760. Its totient is φ = 811022816.

The previous prime is 1650012103. The next prime is 1650012173. The reversal of 1650012172 is 2712100561.

It is not an unprimeable number, because it can be changed into a prime (1650012173) 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 3 ways as a sum of consecutive naturals, for example, 3495553 + ... + 3496024.

It is an arithmetic number, because the mean of its divisors is an integer number (244705230).

Almost surely, 2^1650012172 is an apocalyptic number.

It is an amenable number.

1650012172 is a deficient number, since it is larger than the sum of its proper divisors (1286450588).

1650012172 is a wasteful number, since it uses less digits than its factorization.

1650012172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6991640 (or 6991638 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 1650012172 is about 40620.3418498663. The cubic root of 1650012172 is about 1181.6686561645.

The spelling of 1650012172 in words is "one billion, six hundred fifty million, twelve thousand, one hundred seventy-two".