240166263322091 has 2 divisors, whose sum is σ = 240166263322092. Its totient is φ = 240166263322090.

The previous prime is 240166263322057. The next prime is 240166263322121. The reversal of 240166263322091 is 190223362661042.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240166263322091 is a prime.

It is a super-2 number, since 2×240166263322091² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (240166263222091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120083131661045 + 120083131661046.

It is an arithmetic number, because the mean of its divisors is an integer number (120083131661046).

Almost surely, 2^{240166263322091} is an apocalyptic number.

240166263322091 is a deficient number, since it is larger than the sum of its proper divisors (1).

240166263322091 is an equidigital number, since it uses as much as digits as its factorization.

240166263322091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 47.

The spelling of 240166263322091 in words is "two hundred forty trillion, one hundred sixty-six billion, two hundred sixty-three million, three hundred twenty-two thousand, ninety-one".