260401760121 has 16 divisors (see below), whose sum is σ = 353815672320. Its totient is φ = 170295665280.

The previous prime is 260401760117. The next prime is 260401760153. The reversal of 260401760121 is 121067104062.

It is not a de Polignac number, because 260401760121 - 2² = 260401760117 is a prime.

It is a super-2 number, since 2×260401760121² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (260401750121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 779365 + ... + 1062173.

It is an arithmetic number, because the mean of its divisors is an integer number (22113479520).

Almost surely, 2^260401760121 is an apocalyptic number.

It is an amenable number.

260401760121 is a deficient number, since it is larger than the sum of its proper divisors (93413912199).

260401760121 is a wasteful number, since it uses less digits than its factorization.

260401760121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288656.

The product of its (nonzero) digits is 4032, while the sum is 30.

Adding to 260401760121 its reverse (121067104062), we get a palindrome (381468864183).

The spelling of 260401760121 in words is "two hundred sixty billion, four hundred one million, seven hundred sixty thousand, one hundred twenty-one".