69066266249 has 4 divisors (see below), whose sum is σ = 69066872064. Its totient is φ = 69065660436.

The previous prime is 69066266237. The next prime is 69066266267. The reversal of 69066266249 is 94266266096.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69066266249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69066266194 and 69066266203.

It is not an unprimeable number, because it can be changed into a prime (69066266219) 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, 74477 + ... + 379050.

It is an arithmetic number, because the mean of its divisors is an integer number (17266718016).

Almost surely, 2^69066266249 is an apocalyptic number.

It is an amenable number.

69066266249 is a deficient number, since it is larger than the sum of its proper divisors (605815).

69066266249 is a wasteful number, since it uses less digits than its factorization.

69066266249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605814.

The product of its (nonzero) digits is 10077696, while the sum is 56.

The spelling of 69066266249 in words is "sixty-nine billion, sixty-six million, two hundred sixty-six thousand, two hundred forty-nine".