261100020001162 has 4 divisors (see below), whose sum is σ = 391650030001746. Its totient is φ = 130550010000580.

The previous prime is 261100020001151. The next prime is 261100020001181.

261100020001162 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 254758341244801 + 6341678756361 = 15961151^2 + 2518269^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65275005000289 + ... + 65275005000292.

Almost surely, 2^{261100020001162} is an apocalyptic number.

261100020001162 is a deficient number, since it is larger than the sum of its proper divisors (130550010000584).

261100020001162 is a wasteful number, since it uses less digits than its factorization.

261100020001162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130550010000583.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 261100020001162 in words is "two hundred sixty-one trillion, one hundred billion, twenty million, one thousand, one hundred sixty-two".