1650067998 has 16 divisors (see below), whose sum is σ = 3302382096. Its totient is φ = 549648320.

The previous prime is 1650067997. The next prime is 1650068011. The reversal of 1650067998 is 8997600561.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1650067998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1650067997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83961 + ... + 101732.

It is an arithmetic number, because the mean of its divisors is an integer number (206398881).

Almost surely, 2^1650067998 is an apocalyptic number.

1650067998 is an abundant number, since it is smaller than the sum of its proper divisors (1652314098).

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

1650067998 is a wasteful number, since it uses less digits than its factorization.

1650067998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187179.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 1650067998 is about 40621.0290120770. The cubic root of 1650067998 is about 1181.6819827511.

The spelling of 1650067998 in words is "one billion, six hundred fifty million, sixty-seven thousand, nine hundred ninety-eight".