2365966261 has 2 divisors, whose sum is σ = 2365966262. Its totient is φ = 2365966260.

The previous prime is 2365966259. The next prime is 2365966307. The reversal of 2365966261 is 1626695632.

2365966261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (2365966307) can be obtained adding 2365966261 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2281877361 + 84088900 = 47769^2 + 9170^2 .

It is a cyclic number.

It is not a de Polignac number, because 2365966261 - 2¹ = 2365966259 is a prime.

Together with 2365966259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2365966201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1182983130 + 1182983131.

It is an arithmetic number, because the mean of its divisors is an integer number (1182983131).

Almost surely, 2^2365966261 is an apocalyptic number.

It is an amenable number.

2365966261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2365966261 is an equidigital number, since it uses as much as digits as its factorization.

2365966261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 46.

The square root of 2365966261 is about 48641.1992142464. The cubic root of 2365966261 is about 1332.5070508751.

The spelling of 2365966261 in words is "two billion, three hundred sixty-five million, nine hundred sixty-six thousand, two hundred sixty-one".