261096736145 has 8 divisors (see below), whose sum is σ = 358075523904. Its totient is φ = 179037761904.

The previous prime is 261096736133. The next prime is 261096736151. The reversal of 261096736145 is 541637690162.

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 261096736145 - 2¹⁶ = 261096670609 is a prime.

It is a super-2 number, since 2×261096736145² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 261096736093 and 261096736102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3729953339 + ... + 3729953408.

It is an arithmetic number, because the mean of its divisors is an integer number (44759440488).

Almost surely, 2^261096736145 is an apocalyptic number.

It is an amenable number.

261096736145 is a deficient number, since it is larger than the sum of its proper divisors (96978787759).

261096736145 is an equidigital number, since it uses as much as digits as its factorization.

261096736145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7459906759.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 261096736145 in words is "two hundred sixty-one billion, ninety-six million, seven hundred thirty-six thousand, one hundred forty-five".