247491166099 has 2 divisors, whose sum is σ = 247491166100. Its totient is φ = 247491166098.

The previous prime is 247491166057. The next prime is 247491166103. The reversal of 247491166099 is 990661194742.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 247491166099 - 2²¹ = 247489068947 is a prime.

It is a super-2 number, since 2×247491166099² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (247491166009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123745583049 + 123745583050.

It is an arithmetic number, because the mean of its divisors is an integer number (123745583050).

Almost surely, 2^247491166099 is an apocalyptic number.

247491166099 is a deficient number, since it is larger than the sum of its proper divisors (1).

247491166099 is an equidigital number, since it uses as much as digits as its factorization.

247491166099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5878656, while the sum is 58.

The spelling of 247491166099 in words is "two hundred forty-seven billion, four hundred ninety-one million, one hundred sixty-six thousand, ninety-nine".