61066310211 has 16 divisors (see below), whose sum is σ = 90502686720. Its totient is φ = 40695537960.

The previous prime is 61066310203. The next prime is 61066310219. The reversal of 61066310211 is 11201366016.

61066310211 is a `hidden beast` number, since 6 + 1 + 0 + 6 + 631 + 0 + 21 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (61066310203) and next prime (61066310219).

It is not a de Polignac number, because 61066310211 - 2³ = 61066310203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (61066310219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352755 + ... + 496556.

It is an arithmetic number, because the mean of its divisors is an integer number (5656417920).

Almost surely, 2^61066310211 is an apocalyptic number.

61066310211 is a deficient number, since it is larger than the sum of its proper divisors (29436376509).

61066310211 is a wasteful number, since it uses less digits than its factorization.

61066310211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851983 (or 851977 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

Adding to 61066310211 its reverse (11201366016), we get a palindrome (72267676227).

The spelling of 61066310211 in words is "sixty-one billion, sixty-six million, three hundred ten thousand, two hundred eleven".