208159916912641 has 8 divisors (see below), whose sum is σ = 211779342016704. Its totient is φ = 204559591677840.

The previous prime is 208159916912611. The next prime is 208159916912723. The reversal of 208159916912641 is 146219619951802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-208159916912641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208159916912611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4774945330 + ... + 4774988923.

It is an arithmetic number, because the mean of its divisors is an integer number (26472417752088).

Almost surely, 2^{208159916912641} is an apocalyptic number.

It is an amenable number.

208159916912641 is a deficient number, since it is larger than the sum of its proper divisors (3619425104063).

208159916912641 is an equidigital number, since it uses as much as digits as its factorization.

208159916912641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9549934631.

The product of its (nonzero) digits is 16796160, while the sum is 64.

The spelling of 208159916912641 in words is "two hundred eight trillion, one hundred fifty-nine billion, nine hundred sixteen million, nine hundred twelve thousand, six hundred forty-one".