2161602850 has 48 divisors (see below), whose sum is σ = 4479463296. Its totient is φ = 769304000.

The previous prime is 2161602823. The next prime is 2161602857. The reversal of 2161602850 is 582061612.

It is a super-2 number, since 2×2161602850² = 9345053762256245000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2161602857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15961 + ... + 67660.

It is an arithmetic number, because the mean of its divisors is an integer number (93322152).

Almost surely, 2^2161602850 is an apocalyptic number.

2161602850 is an abundant number, since it is smaller than the sum of its proper divisors (2317860446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2161602850 is a wasteful number, since it uses less digits than its factorization.

2161602850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83691 (or 83686 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 2161602850 is about 46493.0408771033. The cubic root of 2161602850 is about 1292.9804790030.

The spelling of 2161602850 in words is "two billion, one hundred sixty-one million, six hundred two thousand, eight hundred fifty".