1641951606 has 32 divisors (see below), whose sum is σ = 3315375360. Its totient is φ = 542096864.

The previous prime is 1641951589. The next prime is 1641951617. The reversal of 1641951606 is 6061591461.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 279556 + ... + 285368.

It is an arithmetic number, because the mean of its divisors is an integer number (103605480).

Almost surely, 2^1641951606 is an apocalyptic number.

1641951606 is an abundant number, since it is smaller than the sum of its proper divisors (1673423754).

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

1641951606 is a wasteful number, since it uses less digits than its factorization.

1641951606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6260.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 1641951606 is about 40521.0020359813. The cubic root of 1641951606 is about 1179.7413025723.

The spelling of 1641951606 in words is "one billion, six hundred forty-one million, nine hundred fifty-one thousand, six hundred six".