1650663395 has 4 divisors (see below), whose sum is σ = 1980796080. Its totient is φ = 1320530712.

The previous prime is 1650663353. The next prime is 1650663397. The reversal of 1650663395 is 5933660561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5933660561 = 263 ⋅22561447.

It is a cyclic number.

It is not a de Polignac number, because 1650663395 - 2⁸ = 1650663139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1650663397) by changing a digit.

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, 165066335 + ... + 165066344.

It is an arithmetic number, because the mean of its divisors is an integer number (495199020).

Almost surely, 2^1650663395 is an apocalyptic number.

1650663395 is a deficient number, since it is larger than the sum of its proper divisors (330132685).

1650663395 is an equidigital number, since it uses as much as digits as its factorization.

1650663395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330132684.

The product of its (nonzero) digits is 437400, while the sum is 44.

The square root of 1650663395 is about 40628.3570305273. The cubic root of 1650663395 is about 1181.8240951372.

The spelling of 1650663395 in words is "one billion, six hundred fifty million, six hundred sixty-three thousand, three hundred ninety-five".