261656422201234 has 8 divisors (see below), whose sum is σ = 395308263757680. Its totient is φ = 129887000948676.

The previous prime is 261656422201201. The next prime is 261656422201241. The reversal of 261656422201234 is 432102224656162.

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

It is a super-2 number, since 2×261656422201234² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470605075624 + ... + 470605076179.

It is an arithmetic number, because the mean of its divisors is an integer number (49413532969710).

Almost surely, 2^{261656422201234} is an apocalyptic number.

261656422201234 is a deficient number, since it is larger than the sum of its proper divisors (133651841556446).

261656422201234 is a wasteful number, since it uses less digits than its factorization.

261656422201234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941210151944.

The product of its (nonzero) digits is 1658880, while the sum is 46.

Adding to 261656422201234 its reverse (432102224656162), we get a palindrome (693758646857396).

The spelling of 261656422201234 in words is "two hundred sixty-one trillion, six hundred fifty-six billion, four hundred twenty-two million, two hundred one thousand, two hundred thirty-four".