249366561011 has 2 divisors, whose sum is σ = 249366561012. Its totient is φ = 249366561010.

The previous prime is 249366560987. The next prime is 249366561053. The reversal of 249366561011 is 110165663942.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 249366561011 - 2¹⁰ = 249366559987 is a prime.

It is not a weakly prime, because it can be changed into another prime (249366561211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124683280505 + 124683280506.

It is an arithmetic number, because the mean of its divisors is an integer number (124683280506).

Almost surely, 2^249366561011 is an apocalyptic number.

249366561011 is a deficient number, since it is larger than the sum of its proper divisors (1).

249366561011 is an equidigital number, since it uses as much as digits as its factorization.

249366561011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 249366561011 in words is "two hundred forty-nine billion, three hundred sixty-six million, five hundred sixty-one thousand, eleven".