326551641 has 16 divisors (see below), whose sum is σ = 469229376. Its totient is φ = 200811456.

The previous prime is 326551639. The next prime is 326551663. The reversal of 326551641 is 146155623.

It is not a de Polignac number, because 326551641 - 2¹ = 326551639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (326551541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85611 + ... + 89343.

It is an arithmetic number, because the mean of its divisors is an integer number (29326836).

Almost surely, 2^326551641 is an apocalyptic number.

It is an amenable number.

326551641 is a deficient number, since it is larger than the sum of its proper divisors (142677735).

326551641 is a wasteful number, since it uses less digits than its factorization.

326551641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5992.

The product of its digits is 21600, while the sum is 33.

The square root of 326551641 is about 18070.7399129089. The cubic root of 326551641 is about 688.6268574963.

The spelling of 326551641 in words is "three hundred twenty-six million, five hundred fifty-one thousand, six hundred forty-one".