329688542641 has 16 divisors (see below), whose sum is σ = 334358752000. Its totient is φ = 325056240000.

The previous prime is 329688542609. The next prime is 329688542653. The reversal of 329688542641 is 146245886923.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 329688542641 - 2⁵ = 329688542609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (329688542941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18885685 + ... + 18903133.

It is an arithmetic number, because the mean of its divisors is an integer number (20897422000).

Almost surely, 2^329688542641 is an apocalyptic number.

It is an amenable number.

329688542641 is a deficient number, since it is larger than the sum of its proper divisors (4670209359).

329688542641 is a wasteful number, since it uses less digits than its factorization.

329688542641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18520.

The product of its digits is 19906560, while the sum is 58.

The spelling of 329688542641 in words is "three hundred twenty-nine billion, six hundred eighty-eight million, five hundred forty-two thousand, six hundred forty-one".