2261671204151 has 4 divisors (see below), whose sum is σ = 2271813227712. Its totient is φ = 2251529180592.

The previous prime is 2261671204097. The next prime is 2261671204249. The reversal of 2261671204151 is 1514021761622.

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

It is a cyclic number.

It is not a de Polignac number, because 2261671204151 - 2¹⁴ = 2261671187767 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 (2261673204151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5071011446 + ... + 5071011891.

It is an arithmetic number, because the mean of its divisors is an integer number (567953306928).

Almost surely, 2^{2261671204151} is an apocalyptic number.

2261671204151 is a deficient number, since it is larger than the sum of its proper divisors (10142023561).

2261671204151 is a wasteful number, since it uses less digits than its factorization.

2261671204151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10142023560.

The product of its (nonzero) digits is 40320, while the sum is 38.

Adding to 2261671204151 its reverse (1514021761622), we get a palindrome (3775692965773).

The spelling of 2261671204151 in words is "two trillion, two hundred sixty-one billion, six hundred seventy-one million, two hundred four thousand, one hundred fifty-one".