1641441650 has 12 divisors (see below), whose sum is σ = 3053081562. Its totient is φ = 656576640.

The previous prime is 1641441629. The next prime is 1641441653. The reversal of 1641441650 is 561441461.

It can be written as a sum of positive squares in 3 ways, for example, as 1428310849 + 213130801 = 37793^2 + 14599^2 .

It is not an unprimeable number, because it can be changed into a prime (1641441653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16414367 + ... + 16414466.

Almost surely, 2^1641441650 is an apocalyptic number.

1641441650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1641441650 is a deficient number, since it is larger than the sum of its proper divisors (1411639912).

1641441650 is a wasteful number, since it uses less digits than its factorization.

1641441650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32828845 (or 32828840 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1641441650 is about 40514.7090573288. The cubic root of 1641441650 is about 1179.6191555599.

The spelling of 1641441650 in words is "one billion, six hundred forty-one million, four hundred forty-one thousand, six hundred fifty".