266046011662161 has 4 divisors (see below), whose sum is σ = 354728015549552. Its totient is φ = 177364007774772.

The previous prime is 266046011662159. The next prime is 266046011662163. The reversal of 266046011662161 is 161266110640662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (266046011662159) and next prime (266046011662163).

It is not a de Polignac number, because 266046011662161 - 2¹ = 266046011662159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 266046011662161.

It is not an unprimeable number, because it can be changed into a prime (266046011662163) 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, 44341001943691 + ... + 44341001943696.

It is an arithmetic number, because the mean of its divisors is an integer number (88682003887388).

Almost surely, 2^{266046011662161} is an apocalyptic number.

It is an amenable number.

266046011662161 is a deficient number, since it is larger than the sum of its proper divisors (88682003887391).

266046011662161 is an equidigital number, since it uses as much as digits as its factorization.

266046011662161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88682003887390.

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 266046011662161 in words is "two hundred sixty-six trillion, forty-six billion, eleven million, six hundred sixty-two thousand, one hundred sixty-one".