1002165050 has 24 divisors (see below), whose sum is σ = 1909494972. Its totient is φ = 391088000.

The previous prime is 1002165037. The next prime is 1002165053. The reversal of 1002165050 is 505612001.

It can be written as a sum of positive squares in 6 ways, for example, as 350026681 + 652138369 = 18709^2 + 25537^2 .

It is not an unprimeable number, because it can be changed into a prime (1002165053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242381 + ... + 246480.

Almost surely, 2^1002165050 is an apocalyptic number.

1002165050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1002165050 is a deficient number, since it is larger than the sum of its proper divisors (907329922).

1002165050 is a wasteful number, since it uses less digits than its factorization.

1002165050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488914 (or 488909 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1002165050 is about 31656.9905392158. The cubic root of 1002165050 is about 1000.7211631321.

Adding to 1002165050 its reverse (505612001), we get a palindrome (1507777051).

The spelling of 1002165050 in words is "one billion, two million, one hundred sixty-five thousand, fifty".