97666254311 has 4 divisors (see below), whose sum is σ = 103411328112. Its totient is φ = 91921180512.

The previous prime is 97666254293. The next prime is 97666254319. The reversal of 97666254311 is 11345266679.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97666254311 - 2¹⁰ = 97666253287 is a prime.

It is a super-2 number, since 2×97666254311² (a number of 23 digits) contains 22 as substring.

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 97666254311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97666254319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2872536875 + ... + 2872536908.

It is an arithmetic number, because the mean of its divisors is an integer number (25852832028).

Almost surely, 2^97666254311 is an apocalyptic number.

97666254311 is a deficient number, since it is larger than the sum of its proper divisors (5745073801).

97666254311 is a wasteful number, since it uses less digits than its factorization.

97666254311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5745073800.

The product of its digits is 1632960, while the sum is 50.

The spelling of 97666254311 in words is "ninety-seven billion, six hundred sixty-six million, two hundred fifty-four thousand, three hundred eleven".