261671598301 has 8 divisors (see below), whose sum is σ = 267793020000. Its totient is φ = 255551814672.

The previous prime is 261671598289. The next prime is 261671598319. The reversal of 261671598301 is 103895176162.

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

It is a cyclic number.

It is not a de Polignac number, because 261671598301 - 2⁷ = 261671598173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261671598341) 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, 83290 + ... + 728203.

It is an arithmetic number, because the mean of its divisors is an integer number (33474127500).

Almost surely, 2^261671598301 is an apocalyptic number.

It is an amenable number.

261671598301 is a deficient number, since it is larger than the sum of its proper divisors (6121421699).

261671598301 is an equidigital number, since it uses as much as digits as its factorization.

261671598301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819035.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 261671598301 in words is "two hundred sixty-one billion, six hundred seventy-one million, five hundred ninety-eight thousand, three hundred one".