1650000001 has 16 divisors (see below), whose sum is σ = 1821657600. Its totient is φ = 1484981568.

The previous prime is 1649999987. The next prime is 1650000049. The reversal of 1650000001 is 1000000561.

It is a cyclic number.

It is not a de Polignac number, because 1650000001 - 2¹³ = 1649991809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1650000091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159340 + ... + 169378.

It is an arithmetic number, because the mean of its divisors is an integer number (113853600).

Almost surely, 2^1650000001 is an apocalyptic number.

It is an amenable number.

1650000001 is a deficient number, since it is larger than the sum of its proper divisors (171657599).

1650000001 is a wasteful number, since it uses less digits than its factorization.

1650000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10368.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1650000001 is about 40620.1920354890. The cubic root of 1650000001 is about 1181.6657507062.

Adding to 1650000001 its reverse (1000000561), we get a palindrome (2650000562).

The spelling of 1650000001 in words is "one billion, six hundred fifty million, one", and thus it is an aban number.