1650552165 has 24 divisors (see below), whose sum is σ = 2864266080. Its totient is φ = 879276384.

The previous prime is 1650552161. The next prime is 1650552209. The reversal of 1650552165 is 5612550561.

It is not a de Polignac number, because 1650552165 - 2² = 1650552161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1650552161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18966 + ... + 60504.

It is an arithmetic number, because the mean of its divisors is an integer number (119344420).

Almost surely, 2^1650552165 is an apocalyptic number.

1650552165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1650552165 is a deficient number, since it is larger than the sum of its proper divisors (1213713915).

1650552165 is a wasteful number, since it uses less digits than its factorization.

1650552165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42433 (or 42430 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

The square root of 1650552165 is about 40626.9881359670. The cubic root of 1650552165 is about 1181.7975487908.

The spelling of 1650552165 in words is "one billion, six hundred fifty million, five hundred fifty-two thousand, one hundred sixty-five".