1650321345 has 8 divisors (see below), whose sum is σ = 2640514176. Its totient is φ = 880171376.

The previous prime is 1650321331. The next prime is 1650321347. The reversal of 1650321345 is 5431230561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1650321345 - 2⁴ = 1650321329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1650321347) 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 7 ways as a sum of consecutive naturals, for example, 55010697 + ... + 55010726.

It is an arithmetic number, because the mean of its divisors is an integer number (330064272).

Almost surely, 2^1650321345 is an apocalyptic number.

1650321345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1650321345 is a deficient number, since it is larger than the sum of its proper divisors (990192831).

1650321345 is a wasteful number, since it uses less digits than its factorization.

1650321345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110021431.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 1650321345 is about 40624.1473141283. The cubic root of 1650321345 is about 1181.7424570801.

The spelling of 1650321345 in words is "one billion, six hundred fifty million, three hundred twenty-one thousand, three hundred forty-five".